Question

in the adjoining figure a ray stands on a line if x=30° then find the value of y​

Answer 1

24°

Step-by-step explanation:

2x + 5y = 180° (linear pair angle)

2(30°) + 5y = 180°

60° + 5y = 180°

5y = 180° - 60°

y = 120°/5

y = 24°

Answer 2

Step-by-step explanation:

according to figure angle 2x and 5y stands on straight angle i.e 180

2x+5y=180

2*30+5y=180

60+5y=180

5y=180-60

5y=120