Q:

# How many pairs of parallel lines does a square have?

A:

A square has two pairs of parallel lines. This makes it a parallelogram, which is a four-sided polygon with two pairs of parallel sides, each pair being equal in length. A square is a kind of parallelogram whose sides meet at 90 degree angles and are all equal in length.

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Other examples of parallelograms are rectangles and rhombi. A rectangle has two pairs of parallel sides that meet at 90 degree angles, and a rhombus has two pairs of parallel sides that are equal in length. A square is a type of rectangle and rhombus since it meets both their criteria.

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