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# What is the difference between a square and rhombus?

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The primary difference between a square and a rhombus is a square has four 90-degree angles, while a rhombus does not have any right angles. The sides of a square are perpendicular to one another, unlike the sides of a rhombus.

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All the angles of a square are equal. The rhombus has two sets of opposite internal angles with the same measurement.

Both the square and rhombus are quadrilaterals and parallelogramsâ€”they have four sides, and their opposite sides are parallel. The two shapes have all sides equal. Every square, by definition, is considered a rhombus, but a rhombus is not always a square.

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## Related Questions

• A:

A rhombus is an equilateral parallelogram, which is a two-dimensional, four-sided figure in which opposite sides are parallel and all sides have equal length. A square fits this definition. However, it is usually considered a special case, and some definitions of a rhombus specify that squares are not included.

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• A:

A square is always a rhombus because it satisfies the definition of a rhombus, which is any figure with four equal sides, equal opposite angles and two pairs of parallel lines. A rhombus can sometimes be a square.

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• A:

The primary difference between a rectangle and a parallelogram is that all angles in a rectangle are 90 degrees, while none of the angles in a parallelogram are required to be 90 degrees. A parallelogram is defined by having opposite sides of equal length, and opposite angles of equal size.