if know pls answer it fast!!!
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1
Step-by-step explanation:
x+20+2x-20+60=180( angle sum property)
3x+60=180
3x=180-60
3x=120
x=40
x+20=60
2x-20=60
60
Answered by
0
Answer:
let angle A=x+20
angle B=60
angle C=2x-20
so,
A+B+C=180
x+20+60+2x-20=180
20 se 20 cancel
x+2x+60=180
3x+60=180
3x=180-60
3x=120
x=120/3
x=40
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