Question

Circum ference of semicircle​

Answer 1

The perimeter of a semicircle is the sum of the half of the circumference of the circle and diameter. As the perimeter of a circle is 2πr or πd. So, the perimeter of a semicircle is 1/2 (πd) + d or πr + 2r, where r is the radius.

Answer 2

Step-by-step explanation:

pi=3.14

circumference of a circle=

diameter*pi

or

radius*2*pi