Homework Help: Algebra

Posted by Nancy on Monday, November 8, 2010 at 8:44pm.

You need to make a soda can with a volume of 29 cubic inches.

Find the surface area. calculate the following:
a) How much material is needed if the can's radius is 1 inch?

Algebra - Reiny, Monday, November 8, 2010 at 10:01pm
let the height be h
volume = πr^2h
π(1^2)h = 29
h = π/29

the surface area are
top + bottom + rectangle forming the outside of the cylinder
= 2πr^2 + 2πrh
= 2P(1) + 2π(1)(π/29)
= .....
Algebra - Nancy, Monday, November 8, 2010 at 10:55pm
= 64.28319 in^2

thank you!

Answer this Question

Related Questions

geometry/algebra - I asked this question yesterday, and I'm trying to ...
algebra/geometry please correct me - You need to make a soda can with a volume ...
Math - Are these correct: 1a) Find the lateral surface area in square inches of ...
Math - Are these correct 2a) For the cone, find the Lateral Surface Area in ...
Math - 5) A frustrum of a cone has the following dimensions: height = 6 in, ...
geometry - I found the volume of six cubes to total 336 cubic inches. How do I ...
Math - The surface area of a cube is 384 square inches. What is the volume of ...
Math--Volume and Surface Area - The volume of a cube is 125 cubic inches. Find ...
Math - A cylinder has a height of 15 inches and a diameter of 12 inches. Use pi...
Calculus-Optimal Form: need help... please - Suppose you are designing a coffee ...

For Further Reading

First Name:
School Subject:
Answer: