SOLUTION: A jelly jar has a radius of 3cm and a height of 8cm. The jelly remaining in the jar has a height of 3cm. How much jelly is remaining from the jar?

Algebra ->  Volume -> SOLUTION: A jelly jar has a radius of 3cm and a height of 8cm. The jelly remaining in the jar has a height of 3cm. How much jelly is remaining from the jar?      Log On


   

Question 1033944: A jelly jar has a radius of 3cm and a height of 8cm. The jelly remaining in the jar has a height of 3cm. How much jelly is remaining from the jar?
Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
the volume of a cylinder is equal to pi * r^2 * h.

since your jar is in the shape of a cylinder, that's the formula that need to be applied.

since r = 3 cm and h = 8 cm, then the volume of a full jar is equal to pi * 3^2 * 8 = pi * 9 * 8 = 72 * pi cubic cm.

the jelly remaining in the jar has a height of 3 cm.

the volume of jelly remaining in the jar is equal to pi * 3^2 * 3 = pi * 9 * 3 = 27 * pi cubic cm.