A trapezoid has no right angles. A polygon with only right angles is known as a rectangle.
Edit: Depending on what you define as a trapezoid, this shape could in fact have all right angles. A trapezoid has at least one set of parallel lines. Now, there is some dispute among mathematicians about whether or not quadrilaterals with two sets of parallel lines can be classified as trapezoids. If you allow for trapezoids to have two sets of parallel lines, then the quadrilateral could very well be a rectangle as well.
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.
A trapezoid may have no right angles, or it may have two adjacent ones.
A trapezoid.
No.
The base angels of a trapezoid are the angles that attach to the legs of the trapezoid. There are four base angles in a trapezoid.
None. A trapezoid has 4 angles, but not 4 angels.
A right angled trapezoid.
No. A trapezoid is not a triangle at all
No. A trapezoid is not a triangle at all
The sum of all the interior angles of any trapezoid is 360 degrees.
It is a trapezoid. If the 2 nonparallel sides are congruent, then it is an isosceles trapezoid.
A trapezoid is a quadrilateral and has four faces.