Figure it out yourself
Three
Vertical angles must necessarily be congruent, however congruent angles do not necessarily have to be vertical angles. An example of congruent angles which are not vertical angles are the 3 interior angles of an equilateral triangle. These angles do not share the same vertex yet they are congruent.
If one of its angles are greater than 90 degrees, and the other 2 angles are acute
If one of the angles in a triangle is exactly 90 degrees, then it is a right-angle triangle.
If one of the three interior angles is 90 degrees then it is a right triangle.
2 interior angles are equal and 2 sides are of equal length.
not all congruent angles are vertical angles. Vertical angles must share a vertex.
The three interior angles measure 45, 45 and 90 degrees.
37 degree
Vertical angles are always, by definition, congruent. Note: If the two vertical angles are right angles then they are both congruent and supplementary.
If two angles are vertical then they are congruent.
Vertical angles can be supplementary angles if the lines are perpendicular and then both of the vertical angles would be 90 digress.