SOLUTION: If the depth of water in a pipe is 5cm and the width of the water surface is 18 cm what is the radius of the pipe

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Question 851230: If the depth of water in a pipe is 5cm and the width of the water surface is 18 cm what is the radius of the pipe
Answer by Alan3354(69443) About Me  (Show Source):
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If the depth of water in a pipe is 5cm and the width of the water surface is 18 cm what is the radius of the pipe
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5*(d-5) = 9*9
5d - 25 = 81
d = 106/5
r = 53/5 cm