Question

describing an object
which best describes the structure outlined in the bridge.
it is a parallelogram because it has one pair of opposite sides that is parallel.
it is a parallelogram because it has exactly one pair of opposite sides that is congruent.
it is a trapezoid because it has exactly one pair of opposite sides that is congruent.
it is a trapezoid because it has exactly one pair of opposite sides that is parallel.

Explanation:

A parallelogram has two pairs of parallel sides. A trapezoid has exactly one pair of parallel sides. Congruent sides refer to sides of equal length, which is not the key defining property here. The key is the number of pairs of parallel sides.

Answer:

It is a trapezoid because it has exactly one pair of opposite sides that is parallel.