Which four-sided shape has all sides equal in length?

Which four-sided shape has all sides equal in length?

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

Answer: (D)

A four-sided figure where every side is the same length is called a rhombus. This shape is part of the parallelogram family, so opposite sides are parallel and all four sides are equal in length. That combination—equal lengths on all sides—matches the condition given, which is why the rhombus is the best choice. A quadrilateral could be any four-sided figure, a parallelogram doesn’t require all sides equal, and a trapezoid has only one pair of parallel sides, so they don’t necessarily have equal sides like a rhombus. Think of a diamond shape—that’s a common example of a rhombus.

A four-sided figure where every side is the same length is called a rhombus. This shape is part of the parallelogram family, so opposite sides are parallel and all four sides are equal in length. That combination—equal lengths on all sides—matches the condition given, which is why the rhombus is the best choice. A quadrilateral could be any four-sided figure, a parallelogram doesn’t require all sides equal, and a trapezoid has only one pair of parallel sides, so they don’t necessarily have equal sides like a rhombus. Think of a diamond shape—that’s a common example of a rhombus.