An exterior angle of a triangle is 120 degrees and one of the interior opposite angles is 40 degrees .find the other two angles of a triangle
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Step-by-step explanation:
exterior angle is 120 degree and 1 opposite interior angle is 40 degree
so,
Let The Other interior opposite aangle be x
120°= X+40°
X =120°-40°
X =80°
than the other angle isi
Let The Other angle be y
angle sum property
80°+40°+y= 180°
y= 180°-(80°+40°)
y =60°
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