Area and Perimeter of a Rectangle

  • A rectangle is a quadrangle all inner angles of which are right.
  • The opposite edges are parallel and equally long.
  • The diagonals are the same length; they halve one another but are not perpendicular to one another.


Rectangle Area and Perimeter of a Rectangle
  • P – perimeter
  • A – area
  • a,b – edges
  • d – diagonals
  • α,β – angles formed by diagonals


Enter 2 values

a =
b =
d =
α =
β =

Round to decimal places

Area A =
Perimeter P =

Calculation Procedure


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