Write h as a function of r. Keep "pie" in the function's equation
What is the measurement of the height if the radius of the cylinder is 2 centimeters? Round your answer to the nearest whole number.
2006-07-04 08:32:19 · 4 answers · asked by brownsugar20006 1 in Science & Mathematics ➔ Mathematics
Since the volume of a cylinder is (pi)r^2*h
100 = (pi)r^2*h
h = 100 / ( (pi)r^2 )
Then, when radius is 2cm
h = 100 / (pi *2^2)
h = 100 / (4*pi)
h = 7.95
= 8
2006-07-04 08:38:27 · answer #1 · answered by Ian M 5 · 0⤊ 0⤋
V = Pi r^2h
100 = (2)^2 * h * pi
100 = 4 * h * pi
35 = pi * h
h = (35/pi)
h = about 11cm
2006-07-04 08:42:40 · answer #2 · answered by Sherman81 6 · 0⤊ 0⤋
V = pi*r^2*h
or h = V/pi*r^2 = 100/pi*r^2
Substitute r= 2 and pi = 3.14159
2006-07-04 08:35:38 · answer #3 · answered by ag_iitkgp 7 · 0⤊ 0⤋
the square root of (h divided by pie)=r
2006-07-04 08:36:50 · answer #4 · answered by bikeguy 2 · 0⤊ 0⤋