Answer:

Step-by-step explanation:
the formula of a circle is

knowing the values of h, k, and r we can substitute them into the formula
knowing the
If you want to find the volume, multiply the area of the base by the height. In this problem it would be 888*555, which is equal to 492,840
Step-by-step explanation:
Surface area of a square pyramid is the area of the square base plus the area of the four triangles made from the base and the slant height.
SA = s² + 4(sh/2)
which reduces to:
SA = s² + 2sh
You are told that s = 11 and SA = 319. You can now solve for h:
319 = 11² + 2(11)h
319 = 121 + 22h
198 = 22h
h = 9 ft (answer C)
I hope it's helpful!!
Two lines that intersect at 90 degrees are considered perpendicular to each other.