A cylindrical water tank with radius two feet and length six feet is filled with water to a depth of 3 feet when in a horizontal position. If the tank is turned upright, what is the depth of the water? Give your answer in terms of pie.
Find the volume and total area of a cube with edge 2k.
A right triangular prism has height 20 and base edges 5, 12, and 13. Find the total area.