What is the volume of the pyramid in the diagram?

Answer

= 25 cm³

Explanation
The volume of regular solid is found by;
Volume = base area × perpendicular height.

For a pyramid;
 volume = 1/3 (base area × perpendicular height)

In the figure shown, perpendicular height is 3 cm.
Base area = length × height
                 =  5 × 5
                 = 25 cm²

Volume = 1/3(25 × 3)
            = 1/3 × 75
            =  25 cm³

What are the options

The first option would be correct if it were one half and not one