To find the height of a right pyramid with a square base, we can use the relationships between the base dimensions and the slant height. In this case:
- The length of each edge of the base ( extit{b}) = 24 feet
- The slant height ( extit{s}) = 20 feet
- We need to find the vertical height ( extit{h}) of the pyramid.
First, we determine the length of the half-base edge, which is half of the base edge length:
Half of Base Edge: b/2 = 24/2 = 12 feet
Next, we can form a right triangle with the height ( extit{h}), half of the base edge, and the slant height ( extit{s}). This can be visualized as follows:
Right Triangle Relationship:
Using the Pythagorean theorem:
s2 = h2 + (b/2)2
Substituting the known values:
202 = h2 + 122
Calculating the squares:
400 = h2 + 144
Now, we can isolate extit{h2}:
h2 = 400 – 144
h2 = 256
Now take the square root to find extit{h}:
h = √256 = 16 feet
So, the height of the right pyramid is 16 feet.