Question

Anyone know this, if you do plz help me. If the octagon is cm wide what is the area?

Answer 1

92

Explanation:

Corner triangle: 1/2 (2 x 2) = 2

4 triangles = 4 x 2 = 8

Octagon + 4 triangles forms a square: 10 x 10 = 100

Octagon: 100 - 8 = 92