The fact that corresponding angles are congruent does not require corresponding sides to be proportional - except in the case of a triangle. For quadrilaterals, think of a square and rectangle.
yes or no
Complimentary angles ARE NOT always congruent. However, if one angle is 45 degrees, then they would be congruent since the other would have to be 45 degrees to add up to 90 degrees.
opposite or vertical angles
A pair of congruent angles are those which measure the same size. Therefore, two congruent angles can be of any size, as long as they are of an identical size.Angles of 90 degrees are commonly referred to as "right angles".
quadrilaterals are consecutive and opposite angles always congruent?
2
Square and Rectangle
rectangle and square
There are instances that quadrilateral angles can be consecutive and opposite angles are congruent. The best examples are square and rectangle.
Square and Rectangle Apex
Rectangles (including squares).
Rectangles have all angles congruent,
The quadrilaterals with all angles congruent are rectangles and squares. They are the only quadrilaterals in which all four angles are right angles.
Square and Rectangle
All rectangles (this includes squares).
Rectangles, of which squares are a special case.