Question

one of the exterior angke of a triangle is 120degree and interior opposite angles are in the ratio 2:3.Find angles of the triangle​

Answer 1

$exiterior \: angle \: = sum \: of \: interior \: angles$

$here \: exiterior \: angle \: = 120 \: \: and interior \: angles \: are \: in \: ratio \: of \: 3 \: and \: 5$

$120 = 2x + 3x \\ 120 = 5x \\ \frac{120}{5} = x \\ x = 24$

$2x = 48$

$3x = 72$

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