if a perimeter of a semi circlular park is 72 m find its area and radius ...please help me fast
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Answered by
1
perimeter of semicircular park=πr+2r=72m
r=14m
area=πr×r/2={(22/7)×14×14}/2=308m×m
r=14m
area=πr×r/2={(22/7)×14×14}/2=308m×m
Answered by
2
since the park is in semicircular
hence,
perimeter= 1/2pi ×2r+2r
72/pi+2=r
r=72×7/36
r=14m
then, area=pi r^2/2
=22/7×14×14/2m^2
=308m^2
hence,
perimeter= 1/2pi ×2r+2r
72/pi+2=r
r=72×7/36
r=14m
then, area=pi r^2/2
=22/7×14×14/2m^2
=308m^2
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