parallelogram, square, rhombus, rectangle calculator

in plane geometry, a square is a polygon with four equal sides and four equal interior angles. a square is a type of regular polygon, also called a regular quadrilateral. every interior angle is a right angle, or 90 degrees.

in geometry, a rectangle (also known as a rectangle) is defined as a quadrilateral with four equal interior angles, which means that all interior angles are right angles. from this definition it can be concluded that the two opposite sides of a rectangle are of equal length, which means that the rectangle is a parallelogram. a square is a special case of a rectangle in that all four sides are of equal length. at the same time, a square is both a rectangle and a rhombus.

in a plane, a set of parallelograms with equal adjacent sides is a rhombus.

two sets of quadrilaterals with equal opposite angles in the same plane are called parallelograms.