Answer:Name Two pairs of vertical angles 1. ∠m and ∠r2. ∠n and ∠g Name angles that form linear pairs 3. ∠m and ∠n4. ∠r and ∠g5. ∠m and ∠g6. ∠n and ∠r 1. If m∠n = 25° 2. m∠r = 25° (Vertical angles are congruent)3. m∠m = 155° (Linear pairs are supplementary, so m∠m + m∠n = 180°)4. m∠g = 155° (Vertical angles are congruent)