Answer:
The height of the pyramid is 16 feet.
Explanation:
A right pyramid with a square base has a base edge length of 24 feet.
The slant height is 20 feet.
We take the half of base here that is 12.
Let the height be h, applying Pythagoras theorem.

Solving for h;

=>

=>

=>

h = 16
Therefore, The height of the pyramid is 16 feet.