Yes, all trapezoids must have one pair of congruent sides.
By definition, a trapezoid only must have exactly one pair of parallel sides. An isosceles trapezoid does have one pair of congruent sides, but not all trapezoids will have exactly one pair of congruent sides.
No. Most trapezoids don't even have one pair of congruent sides. Only isosceles trapeoids have one pair; none have more than one pair.
nope it is possible for a trapeziod to have three congruent sides
No, a parallellogram is a quadrilateral with two pair of congruent sides and a trapezoid is a quadrilateral with only one pair of congruent sides.
Because the top and the bottem are not the same size
By definition, all trapezoids must have one pair of parallel sides. Therefore, an isosceles has one pair of congruent angles.
they have to because if they didn't it would be some sort of pentagon. so... yes
An isosceles trapezoid must have a pair of parallel sides and a pair of congruent sides
Yes, because trapezoids have one pair of parallel sides.
There are: Squares, which have all four sides parallel and congruent, all four angles are right and congruent, the diagonals bisect each other and are congruent. Trapezoids, which have two of their sides parallel Rhombus, which have all sides congruent, diagonals bisect, and opposite angles are congruent Parallelograms, which have opposite sides congruent and parallel, diagonals bisect Rectangle, which is a square but one pair of opposite sides aren't congruent.
Trapezoids have only one pair of parallel sides. A parallelogram has two pair of parallel sides.