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How to Calculate Perimeter.
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How to Calculate Perimeter.

Rosemary Njeri

We can define perimeter as the distance around the outer edge of a shape or the length of the outline of a shape.

Perimeter helps us to quantify physical space and also provide a foundation for more advanced mathematics found in algebra, trigonometry, and calculus.

Formula to calculate perimeter.

Different shapes have different formulas. For instance;

To find the perimeter of a;square we use;

Perimeter = Length x 4

To find the perimeter of a rectangle, we use;

Perimeter = ( 2 x Length ) + ( 2 x Width )

To find the perimeter of a circle which is also known as the circumference, we use;

Circumference = π x Diameter

Example:

Calculate the perimeter of a rectangular mat whose length is 4m and width 3m.

How to Calculate Perimeter.

Therefore, the perimeter of the mat is 14m.

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