Question

The perimeter of semi circle whose radius is 7 cm

Answer 1

Answer:

perimeter of circle = 2 π r

Step-by-step explanation:

=2*22/7*7

= 44 cm

Answer 2

Answer:

22 cm.

Step-by-step explanation:

circumference of circle = perimeter.

now,

it's semicircle circumference = πr .

= 22/7 × 7

=22 cm.

therefore, the perimeter of semicircle is 22 cm.

hope it's useful...