Question

Which theorem states that the measure of the exterior angle of a triangle is equal to the sum of the measures of the two remote interior angles of the triangle?

A. Triangle Sum Theorem
B. Remote Interior Angle Theorem
C. Exterior Angle Theorem
D. Exterior Inequality Theorem

Answer 1

C. Exterior Angle Theorem.
You can easily conclude that based on the wording of the theorem when it states "exterior angle," which is the main topic of the theorem.