Definition:
The total distance around the outside of a
rectangle
Try this
Drag any orange dot to resize the rectangle. The perimeter is calculated as you drag.
(If there is no image below, see support page.)
How to find the perimeter of a rectangle
Like any polygon, the perimeter is the total distance around the outside,
which can be found by adding together the length of each side.
I the case of a rectangle, opposite sides are equal in length, so the
perimeter is twice its width plus twice its height. Or as a formula:
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perimeter = 2(w+h)
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where:
w is the width of the rectangle
h is the height of the rectangle
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In the figure above, drag any orange dot to resize the rectangle. From the width and height shown, calculate the perimeter
and verify your result matches the formula at the top of the diagram.
Related polygon topics
General
Types of polygon
Area of various polygon types
Perimeter of various polygon types
Angles associated with polygons
Named polygons
(C) 2007 Copyright John Page
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