Homework Help: Geometry

Posted by John on Thursday, February 28, 2013 at 12:00am.

The volume of a sphere is numerically equal to the surface area of the sphere. If this value is equal to N \pi, what is the value of N?

Geometry - Steve, Thursday, February 28, 2013 at 12:07am
4/3 pi r^3 = 4 pi r^2
1/3 r = 1
r = 2

v = a = 36pi, so N = 36

Answer this Question

Related Questions

Physics - Sphere 1 has surface area A1 and volume V1, and sphere 2 has surface ...
geometry - The volume of a sphere is 4,000 m3. What is the surface area of the ...
math: advanced geometry - if the surface area of a sphere equals the surface ...
math: advanced geometry - a sphere has a volume of 12,348pi cubic inches. Find ...
geometry - The volume of a sphere is 2,098 m3. What is the surface area of the ...
surface area and volume - I really need some help, I don't fully understand...
geometry - The radius R of a sphere is 5.6cm. Calculate the sphere's surface...
MAth - A sphere has a surface area of 28.26 in2. Find the diameter in inches, of...
Calculus (Parts A and B done, just help with C) - The radius, r, of a sphere is ...
calculus *improper integrals* - A hole of a radius of 1cm is pierced in a sphere...

For Further Reading

First Name:
School Subject:
Answer: