What is Perimeter?
Perimeter means the total boundary which is covered by the closed shape.
Perimeter can be thus obtained by adding all the sides of the given shape.Thus, According to this,
Perimeter = sum of various sides.
Formula for finding perimeter of Rectangle:
When for a given shape there are sides of equal length, we can make a formula to find the perimeter.
Thus the formula for perimeter can be obtained as follows:
In a rectangle the pair of the opposite sides are equal.
Considering one of the side of rectangle as 'L' and other side as 'B'.According to concept of perimeter:
Perimeter of rectangle should be = L + B + L + B.
On rearranging the terms = L + L + B + B
As both 'L' and 'B' are added twice we can write the above formula as = 2 * ( L + B).
Thus formula for perimeter of Rectangle becomes 2 * (L + B).
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