Home
Pre-K
Kindergarten
Grade 1
Grade 2
Grade 3
Grade 4
Grade 5
Grade 6
Grades 7 and 8
Grades 9 and 10
Grades 11 and 12
Arithmetic
Math Word Problems
Algebra
Geometry
Statistics
Probability
Set Theory
Trigonometry
Matrices
Vectors
Calculus
SAT Preparation
ACT Preparation
GMAT Preparation
Interactive Zone
Math Worksheets
Math Games
Fun Games
Math Trivia
English Help
Chemistry
Animal Facts
Tutoring Services
What's New
Links

 

Geometry: Perimeters of Polygons

 

 

Perimeters of Polygons - square, rectangle, parallelogram, triangle, rhombus, trapezoid

The perimeter of a polygon is the sum of the lengths of its sides.

See also area of circles, cicumference of circles.

Perimeters of Squares

square

Perimeter of a square = s + s + s + s = 4s

Perimeters of Rectangles

rectangle

Perimeter of a rectangle = l + l + w + w = 2(l + w)

 

 

Perimeters of Parallelograms

parallelogram

Perimeter of a parallelogram = l + l + w + w = 2(l + w

Perimeters of Triangles

triangle

Perimeter of a triangle = a + b + c

 

 

Perimeters of Rhombus

rhombus

Perimeter of a rhombus = s + s + s + s = 4s

Perimeters of Trapezoids

trapezoid
a is parallel to b

Perimeter of a trapezoid = a + b + c + d

 

 

The following video shows how to find the Perimeter of a Rectangle

The following video shows how to find the Perimeter of a Parallelogram

The following video shows how to find the Perimeter of a Trapezoid

The following video shows how to find the perimeters of rectangles, squares, triangles and other polygons.

 

 

 

Custom Search

 

We welcome your feedback, comments and questions about this site - please submit your feedback via our Feedback page.

 

© Copyright 2005, 2009 - onlinemathlearning.com
Embedded content, if any, are copyrights of their respective owners.


Useful Links:
More Geometry Help on MathWorld

 

 

 

Custom Search