Question

the perimeter of a rectangle is 30 and its breadth is 6 then find its length

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Answer 1

given, perimeter of rectangle=30

breadth of rectangle=6

perimeter of rectangle=2(length+breadth)

30=2(length+6)

therefore, length=(30/2)-6=15-6=9

It may be useful!

Answer 2

Answer:

Length of rectangle is $9 \ unit$ .

Step-by-step explanation:

To find : length of rectangle.  

Given : the perimeter of a rectangle is 30 unit and its breadth is 6 unit

Solution :

• According to question we are given that  the perimeter of a rectangle is 30 unit and its breadth is 6 unit . We have to find length of rectangle.
• To find length we use following formula -

         Perimeter of rectangle $= 2 ( l + b )$

• Substituting the values we get,

        $\ 30 = 2( l + 6 )\\\\15 =l + 6 \\\\l = 15 - 6 \\\\ l= 9 \ unit$  

• Since unit of measurement of perimeter and breadth was not given , we take it as unit .

Note :

Question for above solution should be : the perimeter of a rectangle is 30 unit and its breadth is 6 unit then find its length .  

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