Question

can you show that this quadrilateral is a parallelogram?
81
74
yes
no

Explanation:

Step1: Recall parallelogram criteria

A quadrilateral is a parallelogram if both pairs of opposite sides are parallel and equal in length, or other valid criteria (e.g., one pair of sides is parallel and equal, opposite angles equal, diagonals bisect each other).

Step2: Analyze given information

We only have lengths of one pair of non-opposite sides: $81$ and $74$. No information about parallelism, opposite sides, angles, or diagonals is provided.

Step3: Evaluate sufficiency

The given data is insufficient to confirm the quadrilateral meets any parallelogram definition.

Answer:

no