Question

Perimeter of a semi circle
is 72cm, find its
diameter.

Answer 1

Answer:

check this answer once

Answer 2

Answer:

as we all know that semi circle is a part of circle .

It is the half of the circle.

Explanation:

so, the perimeter of semi circle is 72cm.

therefore ,the perimeter of the circle is 72×2=144

perimeter of circle =2¤r ,where ¤ denoted pie

144cm=2×22/7×r

144×7/2×22=r

36×7/11=r

22.99=r

hence, d=45.98cm