Area of a rectangular pyramid

Answer 1

You need to clarify this question.

Do you mean the surface area of the sides? 1/2 side x height1 x 4

Or, include the surface area of the base? Above + side x side

Or, do you mean volume? side x side x height2 x 1/3

The two height figures are different. Height1 id measured up the face of the pyramid. Height2 is from the ground up to the peak.