The rear window in a car is approximately a rectangle, 1.3 m wide and 0.30 m high. The inside rear-view mirror is 0.61 m from the driver's eyes, and 1.37 m from the rear window. What are the minimum dimensions for the rear-view mirror if the driver is to be able to see the entire width and height of the rear window in the mirror without moving her head?
I tried setting up triangles to solve this but it got very confusing, because I did not know what the legs would be for many of the dimensions. I mainly need help in getting started.