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A rectangle is a quadrilateral with 4 right angles (90 degrees) and

two sets of parallel lines. The definition of a rectangle includes the

the shape of a square, but a square has an added rule, that all sides

must be equal. So a square is a rectangle. Oblong is a term for

non-square rectangles.

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12y ago
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Q: What do you call a quadrilateral having 4 angles that are congruent?
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