Answer: WY is 14.29
Step-by-step explanation: The triangles are similar, so the ratio of side WZ to side XY is the same as the ratio of side XY to side WY
7/10 = 10/c
To solve the ratio, cross multiply the right side denominator and the left side numerator, then divide by the right side numerator.
10×10 = 100 100/7 = 14.2857
Round to 14.29, the nearest hundredth
It would have been good for the question to state that drawing was not to scale. The "non-right" angles are just a bit larger and smaller than 45°