Question

Anyone knows how to do this?​

Answer 1

AB = 6 feet

BC = 3 feet

The area of ABCD is 18 square feet.

The semicircle has diameter AD = BC = 3 feet.

So, its radius is 1.5 feet and the area is 2.25pi square feet.

Answer: 18 + 2.25pi square feet

Answer 2

Answer & Step-by-step explanation:

The covering for the window is also the area of the figure. First, find the area of the rectangle:

A=l×W

6×3=18

Now find the area of the semi circle:

A=πr²/2

Insert the values. The radius is half the diameter, which is 3, so:

3.14×1.5²/2

3.14×2.25/2

7.065/2

3.5325

Add to the area of the rectangle:

21.5325

The area of the window is about 21.5 units²