If the perimeter of a semi-circular park is 72 m, find its area and radius.
Answers
Answered by
1
Step-by-step explanation:
let radius = r
perimeter of a semi-circular park = (π + 2)r = 72
=> (22/7 + 2)r = 72
=> (36/7)r = 72
=> r = 72×7/36 = 14 m
area = π×r×r/2 = (22/7) × 14 × 14/2 = 308
Answered by
0
Answer:
Step-by-step explanatπr+2r=72
r(π+2)=72
r(22/7+2)=72
r(36/7)=72
r=72×7/36
r=14
ion:
Similar questions