Answer: C) Perimeter = 46.28
Step-by-step explanation:
The lengths of the sides on the bottom half of the shape are given as :
left = 10, bottom = 20, right = 10 = 40.
Need to find the perimeter of the semicircle at the top of the shape.
Perimeter of a circle is the Circumference = 2πr
So the perimeter of a semicircle = πr
= 3.14(2)
= 6.28
Add up the lengths of the left, bottom, right, and top: 40 + 6.28 = 46.28
Since there is only one option for Perimeter = 46.28, there is no need to solve for the Area.
