The trench

Calculate how many cubic meters of soil needs to be removed from the excavation in the shape of an isosceles trapezoid, the top width is 3 meters, the lower width is 1.8 m, the depth of the excavation is 1 m, and the length is 20 m.

Correct answer:

V =  48 m3

Step-by-step explanation:

l=20 m a=3 m c=1.8 m h=1 m  S=2a+c h=23+1.8 1=512=2.4 m2  V=S l=2.4 20=48 m3

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