Yes, that is what a trapezoid is.
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NO. The parallel sides of a trapezium are never congruent. So a trapezium cannot have 4 congruent sides. So the answer to the question is "No, it is not".
Since a trapezoid is a quadrilateral whose bases are parallel and not congruent, then one of its sides can be perpendicular to its bases (as the shortest distance between two parallel lines). Such a trapezoid is called a right trapezoid.
rhombus, trapezoid
Rhombus. Because a Rhombus has four congruent sides but no right angles.
Square
Trapezoid
It can have 2 right angles but normally none unless it is an isosceles trapezoid in which case it will have 2 pairs of congruent base angles
A right trapezoid can have no congruent sides and two right angles.
A quadrilateral has 2 pair of congruent angles and 4 congruent sides. What is the name of the quadrilateral
Since a trapezoid is a quadrilateral whose bases are parallel and not congruent, then one of its sides can be perpendicular to its bases (as the shortest distance between two parallel lines). Such a trapezoid is called a right trapezoid.
trapezoid
rhombus, 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.
trapezoid
trapezoid
Rhombus: A Rhombus has four congruent sides but no right angles.
Rhombus. Because a Rhombus has four congruent sides but no right angles.
No. If the diagonals of a parallelogram are congruent then it must be a rectangle (or square).