The radius of a semicircle is 2 millimeters. What is the semicircle's perimeter? Use 3.14 for ​.

Mathematics · High School · Thu Jan 21 2021

Answered on

Given:

Radius of the semicircle = 2mm

Determine the semicircle's perimeter.

Formula for the perimeter of a semicircle:

P = πr + 2r

Solution:

Substitute the given values of r to the formula for the perimeter.

P = πr + 2r

P = π(2) + 2(2)

P =10.28 mm

Final answer:

P =10.28 mm