Question

Please help me by showing how to do it

Answer 1

20 x 10 = 200 
45 - 10 = 35 - 8 = 27 
8 x 8 = 64
20 - 8 = 22 
22 x 45 = 990
The area of the shape is 990 square feet. 

Hope I could help! 

Answer 2

Break the shape into 3 different shapes and calculate the area of those shapes.

Shape 1: 10*8 = 80 ft^2
Shape 2: 27*12 = 324 ft^2
Shape 3: 8*8 = 64 ft^2

Then add those shapes up:

80+324+64 = 468 ft^2