Atriangle has angles measuring 16 44 and 120 what type of triangle is this

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.

Vertical angles must check all that apply

Use long division to indentify (12xto the second power+15x-8)divided by 3x