Question

Can someone plz help me

Answer 1

1.  The given graph is octagon:

a is the side of the side:

Area of octagon = 2(1+√2) a²= 2(1+√2)(4)²= 77.25 unit²

2. it is similar to Pentagon:

Let A area, l length, w width, b base and h height:

A= lw+1/2b₁h₁+b₂h₂

A= 7(2)+1/2+7*3 =35.5