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no
it is not possible
A trapezoid can have either none or two right angles.
No. A trapezoid need not have any right angles.
A trapezoid can't have three right angles. A quadrilateral with three right angles must have a total of four right angles, since a quadrilateral's interior angles add up to 360. 360 - (3*90) = 90, so the fourth angle would have to be right as well. A quadrilateral with four right angles is not a trapezoid; instead it is a rectangle or a square.
no
it is not possible
It would be impossible. A trapezoid can't have three right angles. It would just make a rectangle.
No, it is not possible to draw a trapezoid with three right angles. A trapezoid is defined as a quadrilateral with at least one pair of parallel sides. If three angles are right angles, the fourth angle would need to be a right angle as well to satisfy the angle sum property of quadrilaterals, which would make all four angles right angles, resulting in a rectangle rather than a trapezoid.
No, because then it would be a rectangle.
if a figure is a square, then it is a regular quadrilateral
No because then it would then be a square or a rectangle
A right trapezoid has at least two right angles.
The sum of all four angles is 360 degrees. If three of the angles were right angles then the fourth would have to be a right angle. You would then have a rectangle or a square, but not a trapezium.
A trapezoid can have either none or two right angles.
A trapezoid may have two right angles.
A trapezoid can have either zero, one, or two right angles. In the case of a right trapezoid, it has exactly two right angles. However, a general trapezoid may have no right angles at all. Therefore, the number of right angles in a trapezoid varies depending on its specific type.