QUESTION IMAGE
Question
find the sum of the measures of the interior angles of the indicated convex polygon.
- decagon
- 13 - gon
- 39 - gon
- pentagon
- hexagon image
- rectangle image
the sum of the measures of the interior angles of a convex polygon is given. classify the polygon by the number of sides.
- 1260°
- 2160°
- 3240°
- 7560°
1. Decágono
Step 1: Recuerda la fórmula
La fórmula para la suma de ángulos interiores de un polígono convexo es \( S = (n - 2) \times 180^\circ \), donde \( n \) es el número de lados. Un decágono tiene \( n = 10 \).
Step 2: Sustituye \( n = 10 \)
Sustituimos \( n = 10 \) en la fórmula: \( S = (10 - 2) \times 180^\circ \)
Step 3: Calcula
\( (10 - 2) = 8 \), entonces \( S = 8 \times 180^\circ = 1440^\circ \)
Step 1: Usar la fórmula \( S = (n - 2) \times 180^\circ \)
Para un 13 - gon, \( n = 13 \).
Step 2: Sustituir \( n = 13 \)
\( S = (13 - 2) \times 180^\circ \)
Step 3: Calcular
\( 13 - 2 = 11 \), \( 11 \times 180^\circ = 1980^\circ \)
Step 1: Aplicar la fórmula \( S=(n - 2)\times180^\circ \)
Para un 39 - gon, \( n = 39 \).
Step 2: Sustituir \( n = 39 \)
\( S=(39 - 2)\times180^\circ \)
Step 3: Calcular
\( 39 - 2 = 37 \), \( 37\times180^\circ = 6660^\circ \)
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\( 1440^\circ \)