Question

An exterior angle of a triangle is130 and one of the interior opposite angles is 45°

Find the other two angles of triangles.
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Answer 1

Answer:

An exterior angle of a triangle is equal to the sum of the opposite interior angles.

Ext. Angle = 130

Interior opp. Angle1 = 45

Hence the other one is 130–45 = 85

We know the measure of two angles, we need the third one.

Measure of the third angle = 180 - (45+85) = 50

Answer: The other two angles are 50 & 85