Practice!

Sample Problem

The diagram shown below is made up of a square and four semicircles. Find the perimeter of the diagram. (Use π = 22/7)

The perimeter of the diagram is inches.

 

Solution

Circumference of the circle 22/7 × 7 in × 2 = 44 in

∴The perimeter of the diagram:

44 in ÷ 2 × 4 + 7 in × 4 = 116 in