Thermal expansion, percent change in density problem

[ctpengage]

Homework Statement

When the temperature of a metal cylinder is raised from 0.0°C to 100°C, its length increases by 0.23%. Find the percent change in density.

Homework Equations

∆L = L∆T
p=m/v

The Attempt at a Solution

I don't have any real idea how to start the problem. How do I relate the change in length to the change in volume? I know that mass is constant.

Thanks

 

[Doc Al]

How do you find the volume of a cylinder? Hint: All linear dimensions increase by the same percentage.

 

[ctpengage]

oh my god thanks so much