Cross-sectional 18973

Calculate the cross-sectional area of the trapezoidal channel irrigation channel if its upper width is 7.9 m, its bottom width is 5.5 m, and its depth is 2.8 m.

Correct answer:

S =  18.76 m2

Step-by-step explanation:

a=7.9 m c=5.5 m h=2.8 m  S=2a+c h=27.9+5.5 2.8=25469 m2=18.76 m2

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