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Find the length of a rectangle if its breadth is 20.5 metre and perimeter 102 m.
Given :
Breadth of Rectangle = 20.5 m
Perimeter of Rectangle = 102 m
To do:
Length of Rectangle = ?
Solution :
Perimeter of Rectangle = 2 (length $+$ breadth)
Substitute the given values in the above equation,
102 = 2 (length $+$ 20.5)
$\frac{102}{2}=$length$+$20.5
56 = length $+$ 20.5
Rewrite,
Length $+$ 20.5 = 56
Length = $56 - 20.5$
Length = 35.5 m
The length of the Rectangle is 35.5 m.
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