What is a perimeter? – Simple geometry

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The perimeter of this rectangle is in dark green.

The perimeter of this rectangle is in dark green.

The perimeter of a square or a triangle is the distance all the way around the edge – the green strip in this picture.

The circumference of a circle is also its perimeter. The perimeter of a quadrilateral, like a square or a rectangle, is always equal to twice the length plus twice the width. The perimeter of a triangle  or a hexagon is always equal to adding the length of all the sides together.

Squares
Triangles
Circles
Area
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Bibliography and further reading about geometry:

More about Geometry
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By |2017-07-29T11:39:51+00:00July 29th, 2017|Math|0 Comments
Cite this page: Carr, K.E. What is a perimeter? – Simple geometry. Quatr.us Study Guides, July 29, 2017. Web. October 16, 2018.

About the Author:

Dr. Karen Carr is Associate Professor Emerita, Department of History, Portland State University. She holds a doctorate in Classical Art and Archaeology from the University of Michigan. Follow her on Instagram, Pinterest, or Facebook, or buy her book, Vandals to Visigoths.

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