RV bisects the Triangle SVU in two equal halves means, it cuts the triangle into two smaller triangles with equal area. Here, SR = RU Angle R is equal to itself. & V is already divided into two equal halves.
So, The two smaller angles would be Congruent by ASA Postulate.
The triangle is a right triangle because of the square. every triangle is 180 degrees so you take 180-90 which will equal 90. You have two angles left so divide 90 by two and you get 45. 45 is the missing angle and both are the same
