A rhombus is a 4 sided quadrilateral
rhombus
A rhombus has 4 equal sides
Trapezoids have unequal side lengths.
A rhombus is like a square that has had two opposite corners pulled out. That is, the side lengths are equal. Therefore the length of each side in this case is 21.
Each of the 4 sides of any rhombus are equal in lengths.
It is a square or a rhombus of which both have 4 equal side lengths.
rhombus
A rhombus can't have two different side lengths. They all must be the same. If the sides are 30-in, then the perimeter is 120-in. If they're 40-in, then the perimeter is 160-in.
That will depend on the lengths of the diagonals of the rhombus which are of different lengths and intersect each other at right angles but knowing the lengths of the diagonals of the rhombus it is then possible to work out its perimeter and area.
the answer is 20
The lengths of the 4 sides of a rhombus are equal but a rhombus has no right angles
Technically, a rhombus is a parallelogram, but a parallelogram is not always a rhombus. A parallelogram is any four-sided shape with two sets of parallel lines. A rhombus is a parallelogram with all equivalent side lengths. So, a rhombus is a more specific parallelogram. (And so is a a square or a rectangle.)