Question

Can anyone plzzzz helpn Thank you

Answer 1

Answer:

200 square feet

Step-by-step explanation:

The formula for the lateral surface area of a square pyramid is $a\sqrt{a^2+4h^2}$, where a is the side length and h is the height of the pyramid. The first step is therefore to find the height of the pyramid. Using the pythagorean theorem, you can find that it is $\sqrt{10^2-5^2}=5\sqrt{3}$. Plugging in our known values into the equation, you get $10\sqrt{10^2+4(5\sqrt{3})^2}=10\sqrt{100+300}=10\cdot 20=200$. Hope this helps!