30. A formula for the volume, V, of a right circular cylinder is V = πr2h , where r is the radius and h is the height. The cylindrical tank shown below has radius 5 meters and height 3 meters and is filled with water.
Given that the weight of 1 cubic meter of water is approximately 2,205 pounds, the weight, in pounds, of the water in the tank is:
Your Answer is
Correct Answer is J
Explanation
Find the volume of water in the cylinder first
V = π × 5² × 3 = 235.5 (π is calculated according to 3.14), so the weight of water is 235.5 × 2205 = 519277.5 pound, so choose J