Question

One side of the triangle is produced and the exterior angle so formed is 128°. If the Interior opposites angles are equal, find the measures of the angles of the triangle. Plz.... answer
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Answer 1

Hope it helps you!!

We know that exterior angle is equal to sum of two interior opposite angles.

Let the two interior angles be 2x and 3x.

=2x+3x=120

=5x=120

=x=120/5

=x=24

=2x=48

=3x=72

Angles In a triangle add up to 180

let the unknown angle be x.

x+48+72=180

x+120=180

x=180-120

x=60

the angles in the triangle are 60°,48° and 72°