Question

The picture says all :)

Answer 1

640

Explanation:

20*5=100

4*12=48

6*5=30

4*4=16

12*6=72

20*6=120

cause these are rectangles you only need 3 side

but also don't forget that little section that they are connected

100+100+48+48+36+36+16+16+72+72+120+120=784

calculate the connected area

72+72=144

s0...

784-144=640

Answer 2

I think the answer is a 148 cm squared

Explanation: