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.
* * * * *
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.
Chat with our AI personalities
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.