Question

Which new angle is created by extending one side of a triangle?

a remote interior angle
an adjacent interior angle
an exterior angle
a complementary angle

Answer 1

choice c. exterior sngle

Answer 2

Answer :- An exterior angle is created by extending one side of a triangle.

Explanation:-

Let ABC a triangle with interior angles ∠A, ∠B and ∠C and one of its side AB is extended to a point P such that a new angle ∠ACP is formed outside the triangle ABC named as exterior angle of ABC.

⇒∠BCA and ∠ACP are supplementary angles.

Also the measure of exterior angle is equal to sum of the opposite interior angles of a triangle.