QUESTION IMAGE
Question
- a quadrilateral has two angles that measure 100° and 60°. the other angles have a ratio of 3:17. what are the measures of those angles?
Step1: Sumar los ángulos conocidos
$100^{\circ}+60^{\circ}=160^{\circ}$
Step2: Calcular la suma de los ángulos restantes
La suma de los ángulos internos de un cuadrilátero es $360^{\circ}$. Entonces, $360^{\circ}-160^{\circ}=200^{\circ}$
Step3: Definir variables según la razón
Sea el primer ángulo $3x$ y el segundo $17x$. Entonces, $3x + 17x=200^{\circ}$
Step4: Resolver para $x$
$20x = 200^{\circ}$; $x=\frac{200^{\circ}}{20}=10^{\circ}$
Step5: Calcular los ángulos
$3x=3\times10^{\circ}=30^{\circ}$; $17x=17\times10^{\circ}=170^{\circ}$
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Los ángulos miden $30^{\circ}$ y $170^{\circ}$