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- DictionaryPe·rim·e·ter/pəˈrimədər/
noun
- 1. the continuous line forming the boundary of a closed geometric figure: "the perimeter of a rectangle"
- 2. an instrument for measuring the extent and characteristics of a person's field of vision.
Perimeter is the boundary of a closed plane figure or the length of such a boundary. Learn more about the word history, synonyms, examples, and related phrases of perimeter.
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- What Is A perimeter?
- How to Find Perimeter
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- Solved Examples on Perimeter
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In geometry, the perimeter of a shape is defined as the total length of its boundary. The perimeter of a shape is determined by adding the length of all the sides and edges enclosing the shape. It is measured in linear units of measurement like centimeters, meters, inches, or feet. Let’s try to calculate the perimeter of the following shape: Perime...
Perimeter of a Regular Shape
We know that the length of each side of a regular polygon is the same. Therefore, Perimeter of regular polygon = sum of all its sides = number of sides ✕ length of one side. For example, look at the given regular pentagon. The perimeter of the given regular pentagon can be calculated as follows: Number of sides = 5 Length of one side = 4 cm Therefore, Perimeter = number of sides ✕ length of one side = 5 ✕ 4 = 20 cm The given table summarizes the formulas to find the perimeter of some regular...
Perimeter of An Irregular Shape
Since the sides of an irregular polygon may not all be the same in length, we use the general formula to find the perimeter of an irregular shape. Therefore, Perimeter of irregular polygon = sum of all sides.
We often use the concept of perimeter in real life. For example, when putting up Christmas lights around the house or when we want to put a fence around the backyard, we find its perimeter to know the length of wire we will need.
Example 1: What is the perimeter of the given figure? Solution: We know that the perimeter of a triangle is given by Perimeter = a + b + c, Where a, b, c = length of three sides. Therefore, For the given triangle, Perimeter = 5 cm + 4 cm + 3 cm = 12 cm Example 2:Calculate the perimeter of the following figure. Solution: The given shape is an irregu...
Learn how to find the perimeter of regular and irregular shapes using linear units of measurement. Explore the formulas, examples, and real-world applications of perimeter with interactive games and practice problems.
Perimeter definition: a line bounding or marking off an area. See examples of PERIMETER used in a sentence.
Perimeter is the outer edge of an area or the length of the outer edge of a shape. Learn how to use perimeter in different contexts, such as geometry, basketball, and irrigation, with examples and collocations.
Perimeter is the outer edge of an area or the length of the outer edge of a shape. Learn how to use perimeter in different contexts, such as geometry, basketball and security, and see translations in other languages.
Perimeter is the distance around a two-dimensional shape. Learn how to calculate the perimeter of different shapes, such as triangles, squares, rectangles, circles, sectors and ellipses, with formulas and examples.
The perimeter of a house is its property line. For a country, it would be that country’s borders. From Latin, meaning “around” (peri)and “measure” (metron), a perimeter is basically a boundary of any kind, measuring around the shape. In mathematics, perimeter refers to the length of this boundary.
