Only if they both equal 90 degrees.
Vertical angles are always, by definition, congruent. Note: If the two vertical angles are right angles then they are both congruent and supplementary.
supplementary angles are equal to 180 degrees. so two congruent(same) angles would be 90 degrees!
Not unless the parallelogram is a rectangle. In every parallelogram, consecutive angles are supplementary.
90 degrees is the angle
There's lots of useful things you can discover when parallel lines are cut by a transversal, most of them having to do with angle relationships. Corresponding angles are congruent, alternate interior angles are congruent, same side or consecutive interior angles are supplementary, alternate exterior angles are congruent, and vertical angles are congruent.
Angles that are congruent and supplementary must be right angles.
They are congruent angles
No, a pair of angles that are supplementary will always have a sum of 180 degrees, while a pair of angles that are congruent will have the same measure. Therefore, it is not possible for a pair of angles to be both supplementary and congruent.
Vertical angles are always, by definition, congruent. Note: If the two vertical angles are right angles then they are both congruent and supplementary.
They are supplementary
congruent
Give us a break! -- A 3° angle is congruent to another 3° angle, but their sum is only 6° , not 180°. -- Congruent angles are always equal, but supplementary angles don't have to be equal.
They can be but not always because supplementary angles add up to 180 degrees.
Supplementary Congruency Theorem
supplementary angles are equal to 180 degrees. so two congruent(same) angles would be 90 degrees!
Congruent *apex
No, congruent supplementary angles do not each measure 90 degrees. Supplementary angles are defined as two angles whose measures add up to 180 degrees. If two angles are congruent and supplementary, they would each measure 90 degrees, but this is a specific case rather than a general rule. In general, congruent supplementary angles can have any measure that adds up to 180 degrees, as long as they are equal.