Q: What are the lengths of quadrilaterals?

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There are infinite amounts of quadrilaterals that have sides that aren't all equal. In regular quadrilaterals, however there are rectangles and kites that have uneven lengths of sides.

No- quadrilaterals don't require completely equal sides. There are quadrilaterals like rectangles that have uneven lengths of sides.

The most obvious types of quadrilaterals that have perpendicular diagonals are those with two pairs of adjacent sides the same length - squares, rhombuses, and "kite" shapes.These are all special cases of "orthodiagonal" quadrilaterals. All orthodiagonal quadrilaterals will adhere to the rule that the sum of the squares of the lengths of two opposite (nonadjacent) sides will equal the sum of the squares of the lengths of the other two sides; for successive sides of lengths a, b, c, and d, we have:a2 + c2 = b2 + d2This formula will be true for all orthodiagonal quadrilaterals and any quadrilateral for which this is true will be orthodiagonal (i.e. the diagonals will be perpendicular).

There is no special name. And some quadrilaterals with special characteristics (eg a trapezium) could still have all sides of different lengths.

A trapezoid is different from other quadrilaterals that have 2 pairs of parallel sides in that a trapezoid has only 1 pair of parallel sides of different lengths.

Related questions

Lengths of sides, sequence of these lengths and measures of angles.

An equation for the sum of squares of side lengths is:

There are infinite amounts of quadrilaterals that have sides that aren't all equal. In regular quadrilaterals, however there are rectangles and kites that have uneven lengths of sides.

No- quadrilaterals don't require completely equal sides. There are quadrilaterals like rectangles that have uneven lengths of sides.

A square and a rectangle have diagonals of the same lengths.

A square is a rectangle in which all side lengths are the same.

Yes they will have the same angles but with proportional different lengths

The most obvious types of quadrilaterals that have perpendicular diagonals are those with two pairs of adjacent sides the same length - squares, rhombuses, and "kite" shapes.These are all special cases of "orthodiagonal" quadrilaterals. All orthodiagonal quadrilaterals will adhere to the rule that the sum of the squares of the lengths of two opposite (nonadjacent) sides will equal the sum of the squares of the lengths of the other two sides; for successive sides of lengths a, b, c, and d, we have:a2 + c2 = b2 + d2This formula will be true for all orthodiagonal quadrilaterals and any quadrilateral for which this is true will be orthodiagonal (i.e. the diagonals will be perpendicular).

A trapezoid only has one pair of opposite parallel sides of different lengths but like all other quadrilaterals it has 4 sides.

There is no special name. And some quadrilaterals with special characteristics (eg a trapezium) could still have all sides of different lengths.

A trapezoid is different from other quadrilaterals that have 2 pairs of parallel sides in that a trapezoid has only 1 pair of parallel sides of different lengths.

A quadrilateral has four sides with lengths, two diagonals with lengths, four inside angles, four outside angles, and an area. The angles are the only things you can measure with a protractor.