Question

help me please i need it

Answer 1

Answer:

150°

Step-by-step explanation:

let the angle adjacent to L 1 be x

x is the angle alternate to the opposite angle of 30°

indirectly, x = 30°

by linear pair of angles of L 1

I.e. x + L 1 = 180°

30° + L 1 = 180°

L 1 = 180° - 30°

L 1 = 150°