In the diagram below, line RS is parallel to line XY, the measure of angle X is 25, line XY = 30, line RS = 26, and line ZY = 20.
1. What is the measure of angle SRZ? How do you know?
2. What is the value of the ratio XZ/RZ expressed as a reduced fraction?
3. If line ZY = 20, what is line SY to the nearest hundredth?
