461,590 views
36 votes
36 votes
Can some one please give me a step by step solution please. ASAP! I want to know how to learn it.

Can some one please give me a step by step solution please. ASAP! I want to know how-example-1
User Epox
by
2.5k points

1 Answer

14 votes
14 votes
Vertical angles are congruent.
10x+60=30x-20
20x=80
x=4

All four angles add up to 360 degrees.
360-100-100=360-200=160
160/2=80

100, 100, 80, 80
User Bertdida
by
2.4k points
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