Question

the perimeter of a semicircle (including its diameter) of radius 7 cm is

Answer 1

22 cm is the perimeter..
we got this from
πr

Answer 2

it is 36.
First it is said that including diameter .therefore if radius is 7 cm therefore diameter will be 14cm
now perimeter of semicircle= pi x r
therefore 22/7 x 7 = 22
therefore add diameter + the length of arc =
22+14=36.
***hope it is helpful*****