Answer:
∠1=140
Step-by-step explanation:
∠1=∠3 ( corresponding angles)
20x+60=30x+20
-20x+30x=60-20
10x=40
x=4
∠1=20x+60=20(4)+60=140
15+15+15+2+2+2+2=(3×15)+(4×2)=45+8=53
a is the answer
i got it right
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