Question

Check wheater angle ABC is equilateral or isosles
Angle A=y+20
AngleB=2y-20
AngleC=3y-60

Answer 1

Answer:

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Answer 2

Answer:

Y+20+2y-20+3y-60=180. 6y-60=180 6y=180+60. 6y=240. y=40 yes angle ABC=60degree[2y-20=2*40-20=80-20j60]