Question

The diameter of a semicircle is 6 yards. What is the semicircle's perimeter?
Use 3.14 for ​.

Answer 1

9.4 yds

Explanation:

The formula for the perimeter (circumference) of a circle is C = dπ. Here d = 6 yds, and so the circumference of the circle is (3.14)(6 yds) = 18.8 yds.

The semicircle's perimeter is half that: 9.4 yds