Find the perimeter of this semi-circle with radius, r = 22cm. Give your answer rounded to 1 DP.

Question

asked May 16, 2022 4.6k views

1 Answer

Nara · Answer 1 · 2022-05-20T19:35:44+0000

Answer:

69.1 cm

Explanation:

Circumference of a circle

c = 2πr

Half of that would be a semi-circle

c = πr

c = π * 22

c = 69.115038379

Rounded

69.1 cm