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## Homework Statement

A small object is located 32.0cm in front of a concave mirror with a radius of curvature of 40.9cm.

Where will the image be formed?

## Homework Equations

tan(θ)=-h/di

f=1/2R?

## The Attempt at a Solution

Haven't been able to solve for theta. I'm not sure what equation to use, but I'm guessing that the radius is important. Do I need to find the focal length?