Question

Find the measure of the exterior angle if the two interior opposite angles of an exterior angle of a triangle are 55° and 80°

Answer 1

See.

First opposite angle is 60 degree.

Second opposite angle is 80 degree.

Exterior angle = First and Second oppo. angle

Exterior angle = 60+ 80

Exterior angle = 140 degree

Henced Exterior Angle is 140 degree.

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Answer 2

Answer:

exterior angle = sum of two opposite interior angles

exterior angle = 55 + 80

= 135 degrees