9. IfA=2B=3C, findA:B:C.
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Answer:
let angle a be x
=x+2x+3x=180°
=6x. = 180°
=x. = 180°
6
=x. =30°
then ,
angle A = 30°
angle B = 2×30°=60°
angle C = 3×30°=90°
ratio = 3:2:1
that's your answer
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