How to solve for g: solve for g d=1/2gw

Which statements are true? see picture

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.

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle