Hello, I have a question that I don't know how to answer. If it's possible, could you also show step by step on how this problem was solved. Thank You!

Question

Find the area of the following shape.

 a. 100 ft²

 b. 98 ft²

 c. 93 ft²

 d. 91 ft²

Answer 1

You would break it into two rectangles and a square.

The bottom rectangle is 3x7=21

the rectangle to the far right also is 7x3=21

What remains is a square of 7x7=49

Add all those areas together to get

21+21+49=91