Rectangle ▭

A rectangle is a basic shape which has four right angles (90°).

Definitions:
  • a: Edge Length a
  • b: Edge Length b
  • d: Diagonal
  • U: Perimeter
  • A: Area
a U b

Perimeter of a Rectangle

The perimeter U is the total length of all 4 sides.

\(U=2*a+2*b\)
U = Perimeter
a = Edge Length a
b = Edge Length b

a A b

Area of a Rectangle

The region inside a rectangle.

\(A=a*b\)
A = Area
a = Edge Length a
b = Edge Length b

a b d

Pythagorean Theorem

\(d=sqrt(a^2+b^2)\)
d = Diagonal
a = Edge Length a
b = Edge Length b
\(a=sqrt( d^2-b^2 )\)
a = Edge Length a
d = Diagonal
b = Edge Length b
\(b=sqrt( d^2-a^2 )\)
b = Edge Length b
d = Diagonal
a = Edge Length a