Given slope= 4 and a point (0,9), write the equation of the line in point slope form

Me write an equation for the interior angles of this triangle that uses the triangle sum theorem

State if the two triangles are congruent. if they are, state how you know?

When solving this problem: 3025/5.5 = a/90.75 you get 49912.5 which would be the length of one of the sides of a square when the area is only 90.75 inches. is that answer correct, why, and how is it possible?