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The word quadrilateral means "four sides".

It refers to a shape that's on a flat surface.

So a quadrilateral is any shape that has 4 sides

Example: square. rectangle

Some people like to say that a quadrilateral has four points.

That's right but it's better to say that it has four sides.

Note that a four-sided solid is called a tetrahedron.

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7y ago

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