PLEASE HELP FAST PLEASE HELP PLEASE

A: Yes she agrees because if you make the shape a square and add all of the top lengths together and add all of the side lengths together, and times them together, she gets 100. But that is because she is finding the area as if it were a square.

B: 82 because the the area of each triangle on the side is 4.5, and when you times them together and take it away from 100, you get 82.
HOPE THIS HELPS!!