ya, they're perpendicular lines
Vertical angles are always, by definition, congruent. Note: If the two vertical angles are right angles then they are both congruent and supplementary.
Two opposite right-angles, whose corners share the same crossing point, are vertical angles.
Vertical angles can be supplementary angles if the lines are perpendicular and then both of the vertical angles would be 90 digress.
I think you mean vertical angles. Vertical angles are formed by two intersecting lines that make what looks like an X. Vertical angles are the two angles that are across from each other, either the top and bottom 2 angles or the left and right 2 angles. Vertical angles are also always congruent!
Sure, as long as the two intersecting lines are perpendicular.
If two angles are vertical then they are congruent.
Vertical angles are equal in measure and are formed when two lines intersect. Complementary angles, on the other hand, add up to a total of 90 degrees. They are not directly related, but if two lines intersect and form vertical angles, then the angles adjacent to the vertical angles will be complementary.
No, angles cannot be both vertical and complementary at the same time. Vertical angles are formed by the intersection of two lines and are opposite each other, sharing the same vertex, while complementary angles are two angles whose measures add up to 90 degrees. Since vertical angles are equal in measure, they cannot sum to 90 degrees unless they are both 45 degrees, which would not satisfy the definition of being vertical angles.
The term parallelogram refers to a four sided geometrical figure (in other words, a quadrilateral) in which there are two sets of parallel sides. The angles can vary; they can be right angles, or they can be acute or obtuse angles, as long as there are two sets of parallel sides. Angles are not said to be vertical to each other. Angles can be perpendicular to each other, but not vertical or horizontal. If angles are perpendicular, then they are right angles, in other words, 90o angles. Lines can be vertical, but angles can't.
Of course not. The right angles at the corners of my book are certainly not vertical with the right angles at the corners of your computer screen, but they're congruent. The "if" is true, but the "only if" is not. Verticality is sufficient but not necessary for congruence.
Complimentary angles
Perpendicular if they form right angles if not they form vertical opposite equal angles