Answer:
The slant height is 28 inches
Explanation:
The slant height of a pyramid
Given a square base pyramid of side 2a and height h, the slant height is calculated as follows:
![s=√(a^2+h^2)](https://img.qammunity.org/2021/formulas/mathematics/high-school/2bkawo8tcy4xabq8rw7r9o98klodw7wn3s.png)
The attached image shows the relationship between the lengths.
There is no specific information about the dimensions provided in the question, but I'm assuming this:
h = 22.4 in
a = 16.8 in
The slant height is:
![s=√(16.8^2+22.4^2)](https://img.qammunity.org/2021/formulas/mathematics/high-school/qkmyr84oo1j8x8b8ric555wnc66q5u5ksc.png)
![s=√(784)](https://img.qammunity.org/2021/formulas/mathematics/high-school/8ehvu7rk4gy8iw5xg0f6l5go9bgtsn2dq5.png)
s = 28 in
The slant height is 28 inches