No but the diagonals of a square, rhombus and a kite are perpendicular to each other
No. Even in the non-US use of the term (a quadrilateral with at least one set of parallel lines), the lengths of the parallel lines may not be the same, and/or the angles formed by each adjacent side may be different (as in a rhomboid), resulting in diagonals of extremely different lengths.Only in rectangles are diagonals "always" of equal length.
Infinitely many.
in a trapezium 1)atleast one pair opposite sides are parallel 2 )diagonals bisect each other 3)atleast one pair of opposite angles are equal
It has 1,345,890 diagonals
One pair.
A undecagon has 44 diagonals. A dodecagon has 54 diagonals. An octagon has 20 diagonals. A heptagon has 14 diagonals.
24 diagonals
2 diagonals
It has 2 Diagonals!!!
There are 20 diagonals
20 diagonals