Goniophobia
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fear of angles
congurent angles are angles that have equal angles. Example, if you want to have equal angles, you have to have a shape that has equal sides
All right angles are congruent.All straight angles are congruent.All zero angles are congruent.All the angles of a regular polygon are congruent.Vertical angles (the angles opposite one another when two lines intersect) are congruent.When a transversal crosses parallel lines:Corresponding angles are congruent.Alternative Interior angles are congruent.Alternative Exterior angles are congruent.Finally, any angles with the same measure are congruent.
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.
There are no angles they are all obtuse angles