1. The problem statement, all variables and given/known data 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? 2. Relevant equations tan(θ)=-h/di f=1/2R? 3. 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?