Drainage channel

The cross-section of the drainage channel is an isosceles trapezoid whose bases have a length of 1.80 m and 0.90 m, and the arm has a length of 0.60 meters. Calculate the depth of the channel.

Correct answer:

h =  0.4 m

Step-by-step explanation:

h=0.62((1.80.9)/2)2=0.4 m

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