Two angles of a triangle are 30° and 80°. Find the third angle. – InterviewSolution

1.

Two angles of a triangle are 30° and 80°. Find the third angle.

Answer»

Let the third angle be x.

Using the angle sum property of a triangle we have,

30° + 80° + x = 180° x + 110°

= 180° x

= 180° – 110°

= 70°

Third angle = 70°.

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