Perimeter and Algebra Demonstration using Animation

Perimeter and Algebra Demonstration

Short animation to demonstrate how to find an expressions for the perimeter of a 2D shape using algebra

Perimeter is the path or boundary around a shape or can also be known as the outline of a shape. In geometry, there are different kinds of shapes that we encounter from 2D shapes to 3D shapes. Perimeter formulas cover the formulas of various 2-d shapes in geometry.

Perimeter formulas are used to find the distance around the 2-d shape by adding its side lengths. Perimeter is considered as the total length of the sides of different shapes. The perimeter formula can be determined if we know the dimensions of the shape.

Perimeter Formula of a Rectangle

The perimeter formula of a rectangle depends on the distance covered of the entire rectangle i.e. the boundary or covering all 4 sides of the rectangle.

l + b + l + b = 2l + 2b = 2(l+b).

The perimeter of a rectangle is equal to twice the sum of its length and breadth. Hence, the formula for the perimeter of a rectangle is:

Perimeter of a Rectangle,
(P) = 2(l + b) units

Where,

"l" is the length of the rectangle
"b" is the breadth of the rectangle

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