SOLUTION: a swimming pool has the shape of a semi-circle. if the area is 308 square meters, find the perimeter of the pool.[pi=22/7]
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-> SOLUTION: a swimming pool has the shape of a semi-circle. if the area is 308 square meters, find the perimeter of the pool.[pi=22/7]
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Question 75495: a swimming pool has the shape of a semi-circle. if the area is 308 square meters, find the perimeter of the pool.[pi=22/7] Answer by checkley75(3666) (Show Source):
You can put this solution on YOUR website! AREA OF A CIRCLE=PI*R^2
308=(22/7*R^2)/2 CROSS MULTIPLY
(22/7*R^2)=616
22R^2/7=616 CROSS MULTIPLY AGAIN
22R^2=616*7
22R^2=4312
R^2=4312/22
R^2=196
R=14 METERS IS THE RADIUS OF THE POOL.
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