(3p2 - 6pq + 7q2) - (p2 - 5 pq +9q²)

Me! #1 write an equation for the interior angles of this triangle that uses the triangle sum theorem. #2 what is the value of x? #3 what is the measure of #4 classify the triangle above as acute, obtuse, or right. state your reason in a complete sentence.

What term best describes a line ans a point that lie in the same plane

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie