Question

What is the area of this regular octagon that has been divided into eight congruent triangles?A)90 cm2B)360 cm2C)45 cm2D)180 cm2

Answer 1

Given:

One octagon is given

Required:

To calculate the area of regular octagon

Explanation:

Since we have been divided regular octagon into eight congruent triangles

so firstly we calculate area of triangle with base 5 cm and height 9 cm and then gonna multiply this 8 times to calculate the total area

In the first step we are calculating the area of triangle