no
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, because three right angles don't even make a square...
A trapezoid can have either none or two right angles.
No. A trapezoid need not have any right angles.
no
No, a trapezoid could not have three right angles. If it did, it would be a rectangle, as the fourth angle would need to be 90 degrees as well. A rectangle is not a trapezoid.
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.
It would be impossible. A trapezoid can't have three right angles. It would just make a rectangle.
A right trapezoid has at least two right angles.
no, because three right angles don't even make a square...
No, because then it would be a rectangle.
A trapezoid can have either none or two right angles.
A trapezoid may have 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 up to two right, 90 degree angles for it still to be classified as a trapezoid.
A shape with 4 right angles would be a square or rectangle. A trapezoid does not have any right angles..