If the volume of the pyramid is 81 in cubed, and l equals w equals 3 h, what is the length of the base of the pyramid in inches?

The length of the base of the pyramid is 9 inches

Solution:

The volume of pyramid is given by formula:

Where, "l" is the length and "w" is the width and "h" is the height

Given that,

volume of pyramid = 81 cubic inches

Also given that, l equals w equals 3 h

Substitute the values in formula,

Thus height = 3 inches

We have to find the length

l = 3h

l = 3(3) = 9

Thus length of the base of the pyramid is 9 inches

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.