rectangle
yes 9
They are either kites or (if the diagonals bisect each other) rhombuses.
A right trapezium. A right trapezium. A right trapezium. A right trapezium.
yes it is A trapizium has no right angles therefore there are no perpendicular.* * * * *Nonsense! A trapezium can have two adjacent angles which are right angles.
No
Yes they do. * * * * * Uh oh. No, they don't.
The diagonals of a rectangle do not cross at right angles
The diagonals of a square and a rhombus cross at right angles.
rectangle
No.
No.
No but they cross at right angles in a square
kite
Yes, they do.
No, not normally
yes, they do. though they are not always equal in length they always cross at right angles.