Question

What is the name of an interior angle of a triangle that shares a side and a vertex with an exterior angle of the triangle?

A. exterior angle
B. adjacent interior angle
C. remote interior angle
D. alternate interior angle

Answer 1

I think that would be B, adjacent interior angle

Answer 2

Correct option is B that is Adjacent interior Angle.

Explanation:

Given: A triangle

An exterior angle of the triangle.

We need to tell name of interior angle which has a side and a vertex of the exterior angle of the triangle.

Since, Here we have a common vertex and a common arm of angle with exterior angle. Which means it is an adjacent angle with exterior angle.

Also it is interior angle of triangle.

Thus, Correct option is B that is Adjacent interior Angle.