Activity 3: Mirror Equation AS RICH Directions. Solve the following mirror problems. Show your solution in GRESA format (Given, Required, Equation, Solution, Answer). 1. The object's height is 5.00 cm at 40.0 cm from the concave mirror. What are the height and the distance of the image from the mirror if the focal length is 20.0 cm? 2. Determine the focal length of a convex mirror when the object is 27.5 cm from the mirror and produces an image that appears 15.0 cm behind the mirror