The rear window in a car is approximately a rectangle, 1.7 m wide and 0.45 m high.

Question:

The rear window in a car is approximately a rectangle, 1.7 m wide and 0.45 m high. The inside rearview mirror is 0.50 m from the driver's eyes, and 1.90 m from the rear window. What are the minimum dimensions for the rearview 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?