it is not possible
I dont know ;3
It is impossible to have a triangle with 3 right angles. It is possible to draw a triangle with three right angles on the surface of a sphere: www.metacafe.com/watch/769025/270_degree_triangle_yes_3_right_angles
yes..... if you draw a trapezoid, most of them will have 2 acute angles at the bottom and two obtuse at the top.
No.
It would be impossible. A trapezoid can't have three right angles. It would just make a rectangle.
No, because then it would be a rectangle.
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.
it is not possible
I dont know ;3
No because then it would then be a square or a rectangle
if a figure is a square, then it is a regular quadrilateral
Not possible - that would mean the final angle would also have to be ninety degrees - making it a square or rectangle.
It is impossible to have a triangle with 3 right angles. It is possible to draw a triangle with three right angles on the surface of a sphere: www.metacafe.com/watch/769025/270_degree_triangle_yes_3_right_angles
Yes.
yes..... if you draw a trapezoid, most of them will have 2 acute angles at the bottom and two obtuse at the top.
No.