Answer:
Step-by-step explanation:
Given that,
m∠L = 40°, m∠M = 90°
Since ΔLMN ≅ ΔPQR
(17x - y)° = 40°
(2x + 4y)° = 50°
Since, the sum of three angles of a triangle is 180 degrees.
Then, m∠R = 1800 – 400 – 900 = 500
Remove degree from both side
17x – y = 40
2x + 4y = 50
Solving these two equations then,
x = 3, y = 11