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.
yes it can
no
It has no right angles. It has two acute angles.
A trapezoid can have up to two right, 90 degree angles for it still to be classified as a trapezoid.
A right trapezoid has at least two right angles.
At most two.
A trapezoid may have two right angles.
A trapezoid may have no right angles, or it may have two adjacent ones.
0 or 2.
There is one pair of parallel sides. A trapezoid can have at most one right angle. Not all trapezoids have right angles.
A shape with 4 right angles would be a square or rectangle. A trapezoid does not have any right angles..
There are obtuse, acute, and right angles. It depends on what type.
A trapezoid has four angles.
A trapezoid can have 2 right angles, 1 acute angle and 1 obtuse angle that all add up to 360 degrees
It can have 0 or 2 right angles, 1 or 2 acute or obtuse angles.