h=21l=31w=h

The volume of a pyramid is equal to 13⋅(length)⋅(width)⋅(height).

13⋅(length)⋅(width)⋅(height)

Substitute the values of the length l=31, the width w=h, and the height h=21 into the formula to find the volume of the pyramid.

13⋅31⋅h⋅21

Combine 13 and 31.

313⋅h⋅21

Combine 313 and h.

31h3⋅21

Factor 3 out of 21.

31h3⋅(3(7))

Cancel the common factor.

31h3⋅(3⋅7)

Rewrite the expression.

31h⋅7

31h⋅7

Multiply 7 by 31.

217h

Find the Volume pyramid (21)(h)(31)