Question

Find the length of the rectangle whose perimeter is 30 m and breadth is 10 m. *
please answer fast

Answer 1

Answer:

perimeter of rectangle = 2(l+b)

30 m = 2(l+b)

30÷2 = l + 10

15 = l+ 10

15 - 10 = l

l = 5 m

Answer 2

To find : area of rectangle field.

Given : Perimeter = $30 m$ and breadth $= 10m$

Solution :

• According to question we are given that perimeter and breadth of  rectangle  is  $30 m$ and $10m$ respectively. We have to find length of rectangle.

• To find length we use following formula -

        Perimeter of rectangle = 2 (length + breadth )

• Substituting the values we get,

           $30 = 2 ( l + 10 )\\30 = 2l + 20\\2l = 30 - 20 \\l = \frac{10}{2} \\l = 5 m$  

Hence, length of rectangle is $5m$.