SOLUTION: the volume V of a right circular cylinder of height h and radius r is V = pir^2h. if the height is twice the radius, express the volume v as function r.

Click here to see ALL problems on Functions

Question 930208: the volume V of a right circular cylinder of height h and radius r is V = pir^2h. if the height is twice the radius, express the volume v as function r.
Found 3 solutions by Alan3354, stanbon, Hawksfan:
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website!
h = 2r

Was that hard?

Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website!
the volume V of a right circular cylinder of height h and radius r is V = pir^2h. if the height is twice the radius, express the volume v as function r.
-------------
Formula:: V = pi*r^2*h
----
"If" equation:
V = pi*r^2*(2r)
---
V = 2pi*r^3
-------------
Cheers,
Stan H.
==============

Answer by Hawksfan(61)   (Show Source):
You can put this solution on YOUR website!
V = pi* r^2 * h
if h = 2r
V = pi * r^2 * 2r
V= 2pi * r^3

Note: r^2 *r^1 = r^3