Which term describes a square with four right angles and four equal sides?

Which term describes a square with four right angles and four equal sides?

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

Answer: (B)

A square is defined by having four right angles and four equal sides. This exact combination—each angle measuring 90 degrees and every side the same length—is what makes a square unique. A rectangle also has four right angles, but its sides don’t have to be equal, so it can be longer and shorter on different sides. A rhombus has four equal sides, but its angles aren’t required to be 90 degrees. A parallelogram has opposite sides parallel and equal, but its angles aren’t required to be right angles or the sides equal. So the description of four right angles and four equal sides points to a square.

A square is defined by having four right angles and four equal sides. This exact combination—each angle measuring 90 degrees and every side the same length—is what makes a square unique. A rectangle also has four right angles, but its sides don’t have to be equal, so it can be longer and shorter on different sides. A rhombus has four equal sides, but its angles aren’t required to be 90 degrees. A parallelogram has opposite sides parallel and equal, but its angles aren’t required to be right angles or the sides equal. So the description of four right angles and four equal sides points to a square.