Which quadrilateral is defined as having opposite sides parallel and equal in length?

Which quadrilateral is defined as having opposite sides parallel and equal in length?

• A. Rectangle
• B. Rhombus
• C. Parallelogram
• D. Trapezoid

Answer: (C)

Opposite sides parallel and equal in length describes a parallelogram. In a parallelogram, each pair of opposite sides runs in the same direction and has the same length, which keeps the figure balanced as you move around it. That combination of properties specifically identifies a parallelogram among quadrilaterals. A rectangle also has opposite sides parallel and equal, but it is defined by having all right angles. A rhombus has equal side lengths and opposite sides parallel, making it a special kind of parallelogram with a different defining trait. A trapezoid, on the other hand, has only one pair of parallel sides, so it doesn’t fit the described property.

Opposite sides parallel and equal in length describes a parallelogram. In a parallelogram, each pair of opposite sides runs in the same direction and has the same length, which keeps the figure balanced as you move around it. That combination of properties specifically identifies a parallelogram among quadrilaterals. A rectangle also has opposite sides parallel and equal, but it is defined by having all right angles. A rhombus has equal side lengths and opposite sides parallel, making it a special kind of parallelogram with a different defining trait. A trapezoid, on the other hand, has only one pair of parallel sides, so it doesn’t fit the described property.