Can someone explain this?

Question #4 only

Geometry

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 is the distance between the points (2 -3) and (-6 4) on the coordinate plane

You can find the constant of proportionality by finding the ratio of