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Part 1
Find the height of the square pyramid.
Bold Height
84 in.
58 in.
​(The figure is not drawn to​ scale.)
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Part 1
The height of the square pyramid is
  
enter your response here in.

1 answer

To find the height of the square pyramid, we can use the Pythagorean theorem in the context of the pyramid's geometry.

Assuming you have a square pyramid where the base is a square and you know the slant height and half of the side length of the base, we can find the height.

Given:

  • Slant height = 84 in.
  • Base edge = 58 in.
  • Half of the base edge = 58 in / 2 = 29 in.

The height \( h \), slant height \( l \), and half the base edge \( a \) form a right triangle:

\[ l^2 = h^2 + a^2 \]

Substituting the known values:

\[ 84^2 = h^2 + 29^2 \]

Calculating: \[ 84^2 = 7056 \] \[ 29^2 = 841 \]

Now plug these values into the equation:

\[ 7056 = h^2 + 841 \]

Subtract 841 from both sides:

\[ 7056 - 841 = h^2 \] \[ 6215 = h^2 \]

Now take the square root of both sides to solve for \( h \):

\[ h = \sqrt{6215} \approx 78.8 \text{ in} \]

So the height of the square pyramid is approximately:

\[ \text{Height} \approx 78.8 \text{ in} \]

In your response box, you would enter:

78.8 in.