Hello!
For a prism its volume is
where
is the area of a base and
is the height of a prism.
is given so it is sufficient to find
A base is a right triangle, its area may be computed as where
and
are the lengths of the legs. Also denote the length of the hypotenuse as
One leg, is given, and we can find the second by the Pythagorean theorem:
Thus the formula is In numbers it is
This is the answer.
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