problem solving

Question

A concrete pillar has the shape of a cylinder. It has a diameter of 6

 meters and a height of 5

 meters. If concrete costs $96

 per cubic meter, how much did the concrete cost for the pillar?

If necessary, refer to the list of geometry formulas.

Answer 1

V = ∏r²h = ∏*3²*5 = 45∏

cost = $96 * 45∏ = $13,571.68