The perimeter of a rectangle is $40$ units. Find the length of the rectangle if its breadth is $5$ units.

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Solution

Finding the length of the rectangle:
Let the length of the rectangle be $x$ units.
The breadth of the rectangle $= 5$ units
The perimeter of a rectangle $= 40$ units
The perimeter of the rectangle $= 2 (l e n g t h + b r e a d t h)$
Putting the values, we get
$40 = 2 (x + 5) 40 = 2 x + 10 2 x = 40 - 10 2 x = 30 x = 15$
Thus, the length of the rectangle is $15$ units.

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