幾何
三角形、円、座標幾何、証明問題。
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step statement reason 1 ab ≅ cd given bc ≅ ad 2 ac ≅ ac reflexive prope…
The reason for \(\angle BEC\cong\angle DEA\) is "Vertical angles are congruent".
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find the value of x. x =
$55$
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question given: $overline{ab}congoverline{cd}$ and $overline{bc}congove…
The proof that $\overline{AC}$ bisects $\overline{BD}$ is completed as above.
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which equation can be used to find the value of x? x = 60 + 40 find the…
$x = 100$
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which equation can be used to find the value of x? x = 60 - 40 x + 40 +…
\(x = 60 + 40\)
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which equation can be used to find the value of x? x = 60 - 40 x + 40 +…
\(x + 40 + 60 = 180\)
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find df use the number pad to enter your answer in the box. df =
21
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which equation shows the relationship between the exterior angle and th…
$m\angle2=m\angle1 + m\angle4$
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a) which equation can be used to find the value of x? x + 80 + 30 = 180…
$70$
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which equation can be used to find the value of z? z = 80 + 30 z + 80 +…
\(z + 80 + 30=180\)
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the figure shows a triangle with unknown angles. which equation shows t…
\(m\angle1 + m\angle2 + m\angle3 = 180^{\circ}\)
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the figure shows a net of a triangular prism. which expression can be u…
# Explicación: ## Paso 1: Encontrar áreas de las caras rectangulares Las áreas de las caras rectangulares son $3\times3$, $3\times4$ y $3\times5$. Hay una cara de cada tipo. ## Pa…
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what is the value of x? x = exterior angle = non - adjacent interior an…
\(30\)
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what is the value of x? x =
\(150\)
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6. if you rotate all the letters 90°, which ones exhibit rotational sym…
Letters like O and X.
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which rule describes the composition of transformations that maps figur…
$r_{l}\circ R_{Q,180^{\circ}}$
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which three - dimensional figure is represented by the net shown? the f…
Triangular pyramid
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write an equation for the area, a, of the parallelogram shown. a = 2.5 …
$A = 2.5\times3$
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which three - dimensional figure is represented by the net shown? trian…
# Explicación: ## Paso 1: Analizar características de la red Una red es una representación plana de un cuerpo tridimensional. Este net tiene dos triángulos y tres rectángulos. ## …
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what is the final transformation in the composition of transformations …
a 180° rotation about point B'
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write an equation for the area, a, of the parallelogram shown. a =? •? …
$A = 2.5\times3$
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which figure is a triangular prism? how many faces does a triangular pr…
5
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which figure is a triangular prism?
# Explicación: ## Paso1: Recordar la definición de prisma triangular Un prisma triangular tiene dos caras triangulares paralelas y congruentes (bases) y tres caras rectangulares l…
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4. describe both rotational symmetry and reflection symmetry. find four…
Rotational symmetry: A shape looks the same after rotation. Reflection symmetry: A shape is divided into two identical halves by a line. Examples: Circular clock (rotational), rec…
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which figure is a rectangular pyramid? how many faces does a rectangula…
5
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which figure is a rectangular pyramid?
La última figura (en la esquina inferior - derecha) es una pirámide rectangular ya que tiene una base rectangular y caras triangulares que convergen en un vértice.
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which transformation would take figure a to figure b? answer a reflecti…
A counterclockwise rotation of 90° about the origin
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what is m∠bcd? use the number pad to enter your answer in the box. m∠bc…
72
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zora cut out two identical rectangles and a parallelogram to create the…
# Explicación: ## Paso 1: Calcular el área de los rectángulos El área de un rectángulo se calcula con la fórmula $A = l\times w$. Cada rectángulo tiene $l = 8$ pulgadas y $w = 2$ …
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what are the measures of ∠abc and ∠bca? use the number pad to enter you…
\(m\angle ABC = 48\) \(m\angle BCA = 58\)
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liliana makes a number 1 by cutting out a parallelogram and a rectangle…
43
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what is the measure of each angle? drag an angle measure into each box.…
\(m\angle DBE = 53^{\circ}\) \(m\angle DEB = 35^{\circ}\) \(m\angle ABE = 127^{\circ}\) \(m\angle DEF = 145^{\circ}\)
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justin cut out rectangles and a triangle and put them together to form …
# Explicación paso a paso: ## Paso 1: Calcular el área del rectángulo vertical El área de un rectángulo se calcula como $A = l\times w$. Para el rectángulo vertical con $l = 12$ p…
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which rule describes the composition of transformations that maps △abc …
$r_{m}\circ R_{B,90^{\circ}}$
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which rule describes the composition of transformations that maps pre -…
$r_{x - axis}\circ T_{-6,1}(x,y)$
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which statement is true? a. adam took at least 25 seconds to swim one l…
E. $A'(-12,-3)$ and $B'(-6,-5)$
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the rule $r_{y = x}\\circ t_{4,0}(x,y)$ is applied to trapezoid abcd to…
B. $(-1,-5)$ F. $(7,-5)$
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look at this diagram: if (overrightarrow{rt}) and (overrightarrow{uw}) …
$46$
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square abcd is the final image after the rule $t_{ - 4,-1}circ r_{0,90^…
$(-1,6)$
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which rule describes the composition of transformations that maps △bcd …
$T_{5,-6}\circ r_{y = -x}(x,y)$
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the rule $t_{5, - 0.5}circ r_{0,180}(x,y)$ is applied to $\triangle fgh…
$(4,-1.5)$
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parallelogram fghj is the final image after the rule $r_{y - axis}circ …
$(-3,4)$
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what is the final transformation in the composition of transformations …
a 180° rotation about point B'
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what is the final transformation in the composition of transformations …
a 180° rotation about point G
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the rule r_y - axis ∘ r_0, 90°(x, y) is applied to △abc. which triangle…
(Without seeing the actual options' details, we can't give a specific letter - option. But the process above is how to find the answer.)
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the coordinates of the end points of a linear segment ab are a(6,10) an…
E. \(A'(-12,-3)\) and \(B'(-6,-5)\)
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the polygon shown is decomposed into two triangles. how can you find th…
6
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a. adam took at least 25 seconds to swim one lap. b. adam took at most …
E. \(A'(-12,-3)\) and \(B'(-6,-5)\)
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determining vertices after a sequence of transformations. analyze the p…
$A''(3,-1)$ $C''(1,0)$ $D''(1,-2)$
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the sequence of transformations, $r_{o,90^{circ}}circ r_{x - axis}$, is…
$(0,-3)$
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the width of a rectangle measures (7h + 3) centimeters, and its length …
$30h - 2$
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which rule describes the composition of transformations that maps recta…
The correct rule is \(R_{0,270^{\circ}}\circ T_{0,2}(x,y)\) (the first option with the correct composition order).
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identifying the rule for a composition of transformations which rule de…
$R_{0,270^{\circ}}\circ T_{0,2}(x,y)$
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analyze the diagram. what is the composition of transformations that wa…
reflection across line m
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which rule describes the composition of transformations that maps △def …
$T_{ - 5,0}\circ R_{0,90^{\circ}}(x,y)$
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question given: $overline{bd}$ and $overline{ac}$ bisect each other. pr…
$\overline{AB}\cong\overline{CD}$ is proven by using the definition of bisecting line - segments, vertical - angle congruence, the SAS congruence criterion, and CPCTC.
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kyla applied $r_m cdot t_{0,3}$ to triangle abc. what mistakes did she …
She applied the reflection to the triangle first; She changed the size of the triangle instead of just applying a translation.
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composing transformations which figure represents the final image after…
(Without seeing the actual options 1 - 4 visually, we can't give a specific choice. But the above are the steps to find the final image.)
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1. describe a sequence of transformations to move the pre - image (shad…
Pair A: Translate 6 units to the right. Pair B: Rotate 90 degrees clockwise and then translate. Pair C: Reflect over a vertical line and then translate down. Pair D: Dilate and th…
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lesson practice 8.1.06 5. describe a sequence of transformations that w…
Translate the pre - image 5 units to the right and 2 units up.
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4. point (x, y) is rotated 90° counterclockwise around the origin, and …
The generalized coordinates of the image are $(-y - 1,x + 3)$
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a knight travels in a straight line from the starting point to token 1.…
# Explicación: ## Paso 1: Definición de pendientes perpendiculares Las pendientes de dos rectas perpendiculares cumplen que el producto de sus pendientes es - 1. Las rectas con án…
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9 determine the coordinates of each point after a translation 4 units r…
| Pre - Image Coordinates | Image Coordinates | |----|----| |$(-4,5)$|$(0,2)$| |$(0,5)$|$(4,2)$| |$(-4,-1)$|$(0,-4)$|
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figure bcde was transformed using the composition $r_{x - axis}circ t_{…
B. $(5,-6)$
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take a look at your tables from problems 5 and 6. those points show a r…
For part b, if the pre - image point is $(x,y)$, the image point after reflection over the y - axis is $(-x,y)$. For the point $(3,1)$ in the pre - image, the image point is $(-3,…
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teo rides his bike in a straight line from his location, perpendicular …
# Explicación: ## Paso1: Encontrar la ecuación de la recta perpendicular a Path A que pasa por Teo Teo está en el punto $(0, 2)$. La pendiente de Path A se puede calcular como $m_…
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(square+\bigcirc = 10) (\bigcirc=) (\triangle+\triangle = 6) (\triangle…
$\bigcirc = 2$, $\triangle = 3$, $\square = 8$
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the perimeter of a rectangle is 34 units. its width is 6.5 units. write…
The equation is $34 = 2(l + 6.5)$ and the length $l = 10.5$ units.
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solution on the line provided. $3x - 6 < -27$ answer attempt 1 out of 2…
Inequality Notation: $x < - 7$ Number Line: Plot an open - circle at - 7 and draw an arrow to the left.
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are the steepest parts of the two water slides parallel? explain. click…
El primer espacio en blanco se llena con la pendiente de la parte más pronunciada del tobogán 1, el segundo espacio en blanco con la pendiente de la parte más pronunciada del tobo…
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44. a ship in distress fires a signal flare. the flare explodes at a he…
About 2790 feet
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the table shows locations of several sites at a high school campus. a l…
C. Gym F. Art studio
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writing linear equations word problems google classroom microsoft teams…
$y=-0.25x + 2$
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solve the inequality and graph the solution on the line provided. 3 + 2…
Inequality Notation: $x\geq1$ Number Line: We would plot a closed - circle at 1 (because the inequality is $\geq$) and draw a line to the right of 1 on the number line.
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determine if lines r and s are perpendicular. select the correct choice…
# Explicación: ## Paso 1: Identificar la forma de las líneas Observando la gráfica, la línea r es vertical (se extiende en línea recta hacia arriba - abajo) y la línea s es horizo…
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in the graph to the right, are lines l1 and l2 perpendicular? explain. …
# Explicación: ## Paso 1: Calcular la pendiente de $L_1$ La fórmula de la pendiente $m=\frac{y_2 - y_1}{x_2 - x_1}$. Para la línea $L_1$ con puntos $(-5,-2)$ y $(4,-5)$, entonces …
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what value of x will show that the top of the third - level of the meta…
$x = 34$
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determine if s || t. state which postulate or theorem you would use to …
In figure 6, $s\parallel t$ (by corresponding - angles postulate). In figure 7, $s\parallel t$ (by same - side interior angles postulate). In figure 8, $s\parallel t$ (by same - s…
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solve the inequality and graph the solution on the line provided. 5x - …
Inequality Notation: $x\leq5$ To graph on the number - line: Place a closed circle at 5 (because the inequality is $\leq$) and draw a line to the left of 5.
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in the graph to the right, are lines l1 and l2 parallel? explain. choos…
A. No, lines $L_1$ and $L_2$ are not parallel because they have different slopes.
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what is the value of x? use the number pad to enter your answer in the …
8
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for problems 21 - 24, circle the lesser of the two numbers. 21. $sqrt{3…
21. 8 22. $\sqrt{20}-2$ 23. $\sqrt{7}$ 24. $\sqrt{125}$
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in the graph to the right, are lines l1 and l2 parallel? explain. choos…
# Explicación paso a paso: ## Paso1: Recordar la condición de paralelismo de líneas Dos líneas son paralelas si y solo si tienen la misma pendiente. ## Paso2: Analizar las opcione…
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1. given: ∠3≅∠5 2. given: ∠4≅∠8 3. given: ∠1≅∠7 4. given: ∠1 is supplem…
1. Alternate - interior angles theorem 2. Corresponding angles postulate 3. Alternate - exterior angles theorem 4. Same - side exterior angles theorem 5. Same - side interior angl…
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the figure shows two lines cut by a transversal. what value of x shows …
$16$
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42. a vertical radio tower is 645 feet high above level ground. how far…
Approximately 921 feet
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shannon says that the lines with slopes - 3, -1/3, - 3, and 1/3 could r…
# Explicación: ## Paso1: Recordar propiedades de rectángulo En un rectángulo, los lados opuestos son paralelos (tienen la misma pendiente) y los lados adyacentes son perpendicular…
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lines k and n intersect on the y - axis. a. what is the slope of line k…
# Explicación: ## Paso 1: Recordar la fórmula de la pendiente La fórmula de la pendiente $m$ de una recta que pasa por los puntos $(x_1,y_1)$ y $(x_2,y_2)$ es $m=\frac{y_2 - y_1}{…
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for problems 17 - 20, complete each inequality using the greatest possi…
17. $6$ 18. $12$ 19. $15$ 20. $19$
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what are the equations of lines m and q? the equation of line m is. (us…
# Explicación: ## Paso 1: Encontrar la pendiente de la línea m La fórmula de la pendiente $m$ entre dos puntos $(x_1,y_1)$ y $(x_2,y_2)$ es $m=\frac{y_2 - y_1}{x_2 - x_1}$. Usando…
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what are the coordinates of the vertices of the pre - image given? $r_{…
A. $(1,6)$ B. $(1,4)$ C. $(-5,-1)$ D. $(3,6)$
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what are the coordinates of the vertices of the pre - image given? $r_{…
The problem seems to be incomplete as we are not given enough information about the image points' full - context (such as which point among the options is the correct image point …
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draw a 40° angle using the ruler and protractor.
# Explicación: ## Paso 1: Dibujar una línea base Utiliza la regla para dibujar una línea recta. Esta será la base del ángulo. ## Paso 2: Ubicar el centro del transportador Coloca …
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identifying transformations. what are the vertices for the final image …
$(-6,1)$
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look at this graph: what is the y - intercept?
0
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look at this graph: what is the y - intercept?
-5
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identifying transformations what are the vertices for the final image a…
$X''$ is $(-3,-1)$. $Y''$ is $(-3,1)$. $Z''$ is $(-5,1)$.
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look at this graph: what is the equation of the axis of symmetry?
$x = 0$
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look at this graph: what are the coordinates of the vertex? ( , )
(0, 0)
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look at this graph: what are the coordinates of the vertex? ( , )
(0, 8)