Question

perimeter of semi circular field is 108 metres. find the diameter of the field​

Answer 1

ans:

circular field =2×semi circular field = 2×108=216.

perimeter of circle = 216.

2πr= 216 => 22/7×r=108

11/7×r= 56

r = 56×7/11= 392/11

2r = diameter = 2× 35.6 = 71.2