if the perimeter of semi circular park is 72 m find its area and raduis
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p=72m
p=πr+2r
72=3.14×r+2×r
72÷3.14=3r
22.9=3r
22.9÷3=r
r=7.29m
therefore radius is 7.29m
ar=0.5×3.14×7.29×7.29
ar=83.43m^2
therefore area is 83.43m&2
I hope it helps
pls follow
p=πr+2r
72=3.14×r+2×r
72÷3.14=3r
22.9=3r
22.9÷3=r
r=7.29m
therefore radius is 7.29m
ar=0.5×3.14×7.29×7.29
ar=83.43m^2
therefore area is 83.43m&2
I hope it helps
pls follow
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