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let the unknown angles be 2x,4x,6x
now angle sum property of tringle=
2x+4x+6x=180°
12x=180°
x=180/12
x=15°
the unknown angles are 2*15=30°,4*15=60°,6*15=90°
now angle sum property of tringle=
2x+4x+6x=180°
12x=180°
x=180/12
x=15°
the unknown angles are 2*15=30°,4*15=60°,6*15=90°
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