1. The problem statement, all variables and given/known data Lawn spheres placed on pedestals are convex mirrors. One such sphere has a diameter of 40.cm. A 12 cm robin sits in a tree 1.5m from the sphere. Make a representative sketch. Where is the image of the robin? How long is the robins image? 2. Relevant equations 1/f=1/di+1/do hi/ho=-di/do 3. The attempt at a solution I have a diagram but am stuck on where to go from here?