Without quadrilaterals they would be HARAM... BRO i know my mathamacation
quadrilaterals are consecutive and opposite angles always congruent?
square and a rectangle
There are instances that quadrilateral angles can be consecutive and opposite angles are congruent. The best examples are square and rectangle.
rectangle and square
Square and Rectangle
Rectangles (including squares).
Rectangles have all angles congruent,
Rectangles, of which squares are a special case.
The quadrilaterals with all angles congruent are rectangles and squares. They are the only quadrilaterals in which all four angles are right angles.