PROOFS INVOLVING TRIANGLES QUESTIONS WITH CORRECT ANSWERS

exterior angle of a triangle (Model 1) CORRECT ANSWER An angle formed by one side of a triangle and the extension of an adjacent side of the triangle. 1 remote interior angles (Model 2) CORRECT ANSWER With respect to an exterior angle, the two interior angles of the triangle that are not adjacent to the exterior angle. auxiliary line (Model 3) CORRECT ANSWER A line introduced in a figure to make a proof possible. corollary (Model 4) CORRECT ANSWER A statement that is easily proved by applying a theorem. Angles 4 and 5 form what type of angles? CORRECT ANSWER vertical angles Given the following diagram, find the required measure. Given: l | | m m 1 = 140° m 3 = 50° m 2 = CORRECT ANSWER 40 Given the following diagram, find the required measure. Given: l | | m m 1 = 140° m 3 = 50° m 4 = CORRECT ANSWER 130 Given the following diagram, find the required measure. Given: l | | m m 1 = 140° m 3 = 50°