Question

find the angles 3and4 from the figure angle L1= 50°

Answer 1

angle L1 = 50°

let angle 3 and 4 be x and 2x

Then,

L1 + 3 + 4 = 180°

50° + x + 2x = 180°

3x = 180° - 50°

x = 130°/3

x = 44

angle 3 = x = 44

angle 4 = 2x = 2×43

= 86