The

Question

The centre of gravity of a trapezoidal dam section whose top width is a, bottom width is b and the vertical side is a, from its vertical face is

Options:

A . `(a^2 + ab + b^2)/(3(a + b))`

B . `(b^2 + bc + c^2)/(3(b + c))`

C . `(a^2 + ab + c^2)/(3(a + c))`

D . none of these.

Answer: Option A

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