Homework Help: math

Posted by Andrea on Wednesday, August 15, 2012 at 1:23pm.

Find the volume and surface area of a right cylinder with radius 7.5 cm and height 16 in. Make sure your final answer is in inches. Round your answer to the nearest hundredth.

math - Steve, Wednesday, August 15, 2012 at 2:11pm
v = pi r^2 h
= 3.1416 * 7.5^2 * 16
= 1827.44 in^3

a = 2pi*r(r+h)
= 2*3.1416*7.5(7.5+16)
= 1107.41 in^2
math - Andrea, Wednesday, August 15, 2012 at 2:30pm
Thanks, Steve. I believe we were supposed to convert the 16 inches into centimeters first (which is 40.64 cm, right?) to solve for both V and A and then take our final, not-rounded answer, convert it back into inches, and then round.
math - oops - Steve, Wednesday, August 15, 2012 at 3:29pm
oops - you are correct. I didn't watch the units!

Answer this Question

Related Questions

calculus - The radius of the base of a right circular cylinder is r com and the ...
math-PLEASE CHECK AND HELP - find the surface area and volume of the right ...
Math - How to setup this equation? Find the ratio of the surface area of a ...
Math: Geometry - The circumference of the base of a cylinder is 16 cm. The ...
Precalculus - How do you setup the equation for this? Thanky ou! Find the ratio ...
Calculus - Find the radius, volume, and hieght of the right- circlar cylindar ...
math - A right circular cylinder of radius r and height h is inscribed in a ...
algebra - Find the volume of a right circular cylinder whose base has an area of...
geomtry - The radius of the base of a cylinder is 4x cm is 27 cm and its height ...
Geometry - The surface area of the sides of a right cylinder can be found by ...

For Further Reading

First Name:
School Subject:
Answer: