SOLUTION: A river has width 30 metres. If the depth y metres at distance x metres from one bank be given by the table.
x 0 5 10 15 20 25 30
y 0 1.2 2.1 2.4 1.6 0.6 0
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x 0 5 10 15 20 25 30
y 0 1.2 2.1 2.4 1.6 0.6 0
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Question 1011879: A river has width 30 metres. If the depth y metres at distance x metres from one bank be given by the table.
x 0 5 10 15 20 25 30
y 0 1.2 2.1 2.4 1.6 0.6 0
Find the approximate area of cross-section. Answer by rothauserc(4718) (Show Source):
You can put this solution on YOUR website! The approximate area of the cross-section is the plane (the surface) covered by the water in the river channel. It is the product of the width of the channel, and the average depth of the river.
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average depth is ((1.2 + 2.1 + 2.4 + 1.6 + 0.6) / 5) * 30 = 47.4 square meters
