Question

What is the surface area of a square-based pyramid with a base length of 3 in, height of 7 in, and a slant height of 5 in?

Answer 1

Surface area of a square pyramid = a 2 + 2al Where, a denotes base length of a square pyramid and, l denotes the slant height or the height of each side face.

Explanation:

I used to do stuff like this but I haven't in a long time so I believe you have to add up all the numbers or multiply them.