Question

pls help me in this question. file attached below

Answer 1

Step-by-step explanation:

Sum of all the angles in a triangle = 180°

5x-60° + 2x+40° + 3x-80° = 180°

5x + 2x + 3x - 60 + 40 - 80 = 180

10x - 100 = 180

10x = 180 + 100

10x = 280

x = 280/10

x = 28

5x - 60

=5(28) - 60

= 140 - 60

= 80

2x + 40

= 2(28) + 40

= 56 + 40

= 96

3x - 80

= 3(28) - 80

= 84 - 80

= 4