Question

please solve the above Triangle question.​

Answer 1

as both are on a straight line thus these are supplementary angle whose sum is 180°

now

1. 3x + 19 + 4x + 21 = 180

7x + 40 = 180

7x = 140

x = 20

thus angle are 79 °, 101°

2. 5x - 25 + 4x - 20 = 180

9x = 225

x = 25

thus angles are 100° , 80°

Answer 2

PLEASE REFER TO THE ATTACHMENT.........☆