Question

The perimeter of a rectangular hall is 120m. If its breadth is 25m, find the length​

Answer 1

`35m`

Explanation:

Given :-

• The perimeter of a rectangular hall is 120m.
• Its breadth is 25m .

And we need to find the length of the rectangle . We can use the formula to find the perimeter of rectangle , as ,

Perimeter of rectangle :-

`\implies Perimeter = 2( l + b)`

• Let the length of the rectangle be x . Plug in the respective values ,

`\implies 120m = 2 ( x + 25m) \\\\\implies x + 25m =(120m)/(2)\\\\\implies x + 25m = 60m \\\\\implies x = 60m - 25m \\\\\implies x = 35m`

Hence the length of the rectangle is 35 m .