Question

the cross-section of a canal is in the shape of a trapezium .the canal is 12 m wide at the top and 8 m wide at the bottom and the area of the cross-section is 100 ms sq. determine the depth of the canal

Answer 1

Let the depth of the canal be h.

Given that Area = 100m2

We know that Area of trapezium=1/2× Height× (Sum of Parallel Sides)

100m2=1/2× h× (12m +8m)

100=1/2× h × 20

100= 10h

h= 100/10= 10m (Answer)

Answer 2

answer is 10 here is your answer hope it's help