Zero
A right trapezium.
A right trapezium. A right trapezium. A right trapezium. A right trapezium.
It could be a right trapezium, a kite, or an irregular quadrilateral with no specific name.
Usually two, but one if it is a right-angled trapezium.
Depending upon the trapezium, two or none: ....................................................................... ...------------.............................---------....... ...|.................\........................../..............\...... ...|.......A..........\......................./........B......\..... ...|.....................\..................../..................\.... ...----------------...................---------------... ....................................................................... Trapezium A has two; Trapezium B has none.
Usually none.
None or two.
None
1.in a trapezium, only one pair of opposite sides are parallel. 2.in a trapezium, only one pair consecutive angels are supplementary.
Triangles:)
In a trapezium, there are two perpendicular lines. These perpendicular lines are the diagonals of the trapezium. The diagonals of a trapezium are the line segments that connect non-adjacent vertices of the trapezium and intersect each other at a right angle.
A trapezium can have either no right angles or exactly 2 right angles: ...................................... ......------.........---------...... ..../........\.......|..........\..... .../..........\......|...........\.... ../............\.....|............\... ..-------------.....------------... ....................................... Are two trapezia: the first has no right angles, the second has 2.