Rectangle for Junior High School

In geometry, a rectangle is defined as a quadrilateral where all four of its angles are right angles. A rectangle with vertices ABCD would be denoted as ABCD.
Rectangles hold the following properties:



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Opposite sides are of equal length (congruent)
Adjacent sides meet at right angles
All four angles are of equal measure (congruent)
All four angles are right angles
Adjacent angles are supplementary
Opposite sides are parallel
Parallelogram
Diagonals are of equal measure (congruent)
Diagonals bisect one another