Question

how do i figure this out??

Answer 1

Answer:

x is 15

Step-by-step explanation:

Here sum of all angles is 180°

x+30+3x-10+100= 180

4x+120 = 180

x is 180-120/4

x= 15

Answer 2

Answer:

X+30°+100°+3x-10°=180°

X+30°+3x-10° = 180°-100°

4x+20°=80°

4x = 80°-20°

4x = 60°

X = 60/4

X = 15°

X+30°

15+30 = 45°

3x-10°

3*15-10

45-10 = 35°