felipe62 felipe62

18-04-2022
Mathematics

contestada

A. 108
B. 792
C. 891
D. 126

A 108 B 792 C 891 D 126 class=

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Аноним Аноним

18-04-2022

Answer:

C. 891.

Step-by-step explanation:

This is a regular nonagram ( has 9 sides) so the area is the sum of 9 congruent triangles.

Area of a triangle = 1/2 * base * height

Area of 1 triangle in this polygon = 1/2 * 12 * 16.5

Area of the polygon = 9 * 1/2 * 12 * 16.5

= 891

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