Killian Waller

Mathematics

8 December, 05:32

2)

The City of Oz has to repaint its cylinder-shaped water tower. Only the top and sides need to be painted. If the water tower has a height of 60 feet and a radius of 20 feet, how many square feet must be painted?

A) 400π ft2

B) 2400π ft2

C) 2800π ft2

D) 4400π ft2

3)

Jethro wants a swimming pool in his backyard, so he digs a rectangular hole with dimensions 40 feet long, 20 feet wide, and 5 feet deep. How many cubic feet of water will the pool hold?

A) 65 cubic feet of water

B) 8000 cubic feet of water

C) 4000 cubic feet of water

D) 40,000 cubic feet of water

Given that r = 2 in and x = 3 in, determine the surface area of the cylinder. Round to the nearest tenth of an inch.

A) 25.1 in2

B) 62.8 in2

C) 75.4 in2

D) 113.1 in2