Can have no pairs or one pair...
A right trapezoid has exactly one pair of perpendicular lines and is a quadrilateral.
The only requirement for a trapezoid is that one pair of opposite sides be parallel. There could be trapezoids with a pair of perpendicular lines.
Yes, they can be. Here is an example to see how this is true. Construct two perpendicular lines AB and CD that intersect at a point O. Let AO = CO, BO = DO and AO ≠ BO, then ABDC forms an isosceles trapezoid. If the lines are not perpendicular, then also ABDC is an isosceles trapezoid and it has perpendicular diagonals.
It doesn't need any in order to be a trapezoid. It can have a max of two pairs of perpendicular sides.
A trapezoid has 2 parallel lines. It may or may not have perpendicular lines.
Can have no pairs or one pair...
It can, but it need not.
A right trapezoid has exactly one pair of perpendicular lines and is a quadrilateral.
The only requirement for a trapezoid is that one pair of opposite sides be parallel. There could be trapezoids with a pair of perpendicular lines.
Yes, they can be. Here is an example to see how this is true. Construct two perpendicular lines AB and CD that intersect at a point O. Let AO = CO, BO = DO and AO ≠ BO, then ABDC forms an isosceles trapezoid. If the lines are not perpendicular, then also ABDC is an isosceles trapezoid and it has perpendicular diagonals.
No, but it does have 1 pair of opposite parallel lines of different lengths
It doesn't need any in order to be a trapezoid. It can have a max of two pairs of perpendicular sides.
Zero
There is 1 set of parallel lines because the other lines will meet soon.:) i don't no if there are any perpendiclur lines. :(
Zero
TRAPEZOID