Question

Perimeter of semicircle​

Answer 1

Answer:

So, the perimeter of a semicircle is 1/2 (πd) + d or πr + 2r, where r is the radius.

•area= (πr2)/2

•Perimeter (Circumference)= πr + 2r

•Angle in a semicircle= 90 degrees, i.e. right angle

•Central angle= 180 degrees