hocolate if the thermostat has a radius of 4 inches is 12 inches tall which formula could be used to find the number of cubic inches of hot chocolate needed to completely fill this thermos

Question

A thermos in the shape of a cylinder will be filled with hot chocolate if the thermostat has a radius of 4 inches and is 12 inches tall which formula could be used to find the number of cubic inches of hot chocolate needed to fill this thermos completely

Answer 1

Hello!

The question asks for the "number of cubic inches." What they're really asking you is to find the volume of the cylinder.

Formula you have to use: Volume = π r² h where: r is the radius, h is the height of the cylinder.

Volume = π* 4² *12 = π *16* 12 = π*192 = 192π cubic inches

If you use π = 3.14, then Volume = 192*3.14 = 602.88 cubic inches

Answer: you would need 602.88 cubic inches of hot chocolate to completely fill out the thermos.