Work out the perimeter of a semicircle with radius 3. give the answer in terms of pi

Question

asked Feb 3, 2021 218k views

1 Answer

Alexander Seredenko · Answer 1 · 2021-02-07T10:49:52+0000

Answer:

3π

Explanation:

perimeter of a circle = its circumference

circumference of a circle = 2πr

circumference of a semicircle therefore = πr because a semicircle is 1/2 of a circle

the answer would then be 3π