Question

I’m really confused on how to solve this can someone please help me fast!!!!

Answer 1

105.12

Explanation:

area of rectangle = 10 x 8 = 80

area of semi circle = 3.14 x 4^2 (4 because the diameter is 8 so half of it)

= 50.24

50.24 / 2 = 25.12 (as it is a semi-circle)

80 + 25.12 = 105.12

Answer 2

130.24

Explanation:

8*10+3.14*4^2=

80+50.24=130.24 ft^2

Cut the shape into a semi-circle and rectangle (with length 10 and width 8).

You'll find the radius of the semi-circle is 4.

The area of the rectangle is 80.

Then use the pir^2 formula but replace pi with 3.14

3.14 multiplied by radius 4 squared is 50.24

50.24 plus 80 is 130.24 ft squared.