Not EVERY quadrilatiral. Some, for instances :Rectangles, Squares, Parallelograms and Rhombus' are, as they have 2 sets of parellel lines that are equal. (As in the opposite lines are equal with each other) however you could draw a four sided shape with irregular sides.
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No. The only regular quadrilateral is a square. Being a regular polygon requires all sides as well as all angles to be equal. A rectangle fails the first requirement, a parallelogram and a rhombus fail the second - unless they are squares.
Only a square.
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.
In regular quadrilaterals, it's length times width.
There are always 2 diagonals in any quadrilateral whether or not it is irregular or regular
An equilateral parallelopiped, each of whose face is a rhombus.
There is only one regular quadrilateral, the square. A regular polygon must have equal sides and equal angles, and in the case of quadrilaterals that is a square.
Only a square.
Quadrilaterals are polygons. They can be regular or irregular.
Shapes with four sides
they have four sides
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.
Most non-regular quadrilaterals.
In regular quadrilaterals, it's length times width.
A square is a rectangle in which all side lengths are the same.
Quadrilaterals and Triangles, if you're asking for polygon categories.
There are always 2 diagonals in any quadrilateral whether or not it is irregular or regular
All 4 sided quadrilaterals are polygons but a square is the only 4 sided regular polygon.