As shown in the diagram below, a regular pyramid has a square base whose side measures 6 inches. If the altitude of the pyramid measures 10 inches, its volume, in cubic inches, is

Volume of the regular pyramid is 120 cubic inches.

Step-by-step explanation:

Volume of the pyramid =

Area of the square base = a²            [a = side of the square base]

                                         = (6)²

                                         = 36 square inches

By substituting the vales of area and height in the given formula,

Volume =

             = 12×10

             = 120 cubic inches

Therefore, volume of the regular pyramid is 120 cubic inches.

a) justify

step-by-step explanation:

justifying is just part of everyday life. justify kind of means proof so i think the answer is a) justify.