Post a New Question

Math 10

posted by .

A cylinder has a surface area of 250cm2. The height is twice as big as the radius. What is the height of the cylinder?

  • Math 10 -

    h = 2r

    SA = 2πr^2 + 2πrh
    = 2πr^2 + 2πr(2r)
    = 6πr^2

    6πr^2 = 250
    r^2 = 125/(3π)
    r = 3.6418..
    h = 2r = 7.28....

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question