the base of a rectangular solid is 4 ft. long and 3 ft. wide. find the volume of the solid if its diagonal is square root of 41 ft.

Question

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Answer 1

let the height be h
√(4^2 + 3^2 + h^2) = √41
square both sides
16 + 9 + h^2 = 41
h^2 = 16
h = 4

volume = length x width x height
= .....

Answer 2

V=4x3x4 = 48ft cube

Answer 3

is this right?