3 years ago

An exterior angle at the base of an isosceles triangle measures 140 degrees. What is the measure of the vertex angle?

1 answer:

4 0

The correct answer for the question that is being presented above is this one: <span>40 degrees, 40 degrees, and 100 degrees.</span>

Given that the exterior angle is 140 degrees, then the supplementary angle is = 180 - 140 = 40 degrees.

The vertex angles are the following: 40, 40, and 100.

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