Question

find the value of x​

Answer 1

Answer:

as we know,

sum of all angles on a straight line =180°

here,

55° + (5x-20) + 45° = 180°

100° + (5x-20) = 180°

5x-20 = 180°-100°

5x-20 = 80°

5x = 80°+20°

5x = 100°

x = 20°