Question

The area of a semicircle is 32π cm .
Work out the perimeter of the semicircle.
Give your answer in terms of π.

Answer 1

Answer:

16(π + 1) cm

Step-by-step explanation:

Area of semicircle is πr^2 /2

πr^2/2 = 32π

r^2 = 64

r = 8 cm

Now ,

Perimeter of semicircle is 2πr + 2r( diameter)

So p.m = 2π*8 + 2*8

= 16π + 16

= 16(π + 1) cm

Hope this helps you

Please mark as brainliest if you think it is so

@spyder

Answer 2

Answer:

This is simple..

let me show you how--

Step-by-step explanation:

area of semicircle- πr²/2

32π=πr²/2

32π×2=πr²

64π/π=r²

64=r²

r=√64

So therefore,

r=8cm

Perimeter Of semicircle=πr

=8π

=8×22/7

=25.14cm

Hope It helps... ☺☺