B) A cylindrical column in the building shown has circumference 10 feet and height 20 feet. What is its volume? (Round your answer to two decimnal places)

Max is building a spherical model of Earth. He is building his model using 2-inch long pieces of wood to construct the radius. The first time he tries to build the model, he uses 3 of the 2-inch pieces of wood end-to-end to make the radius of the model. a) What is the volume of the model in cubic inches? b) In order to purchase the right amount of paint for the outside of the model, Max needs to know the surface area. What is the surface area of the model in square inches? c) Max decides he wants the model to be larger. If he doubles the length of the radius, how many times larger is the volume?

I need help solving this problem

Find the area of each figure. 5. 24 yd 26 yd