Question

if the perimeter of a rectangle is 72 cm and it's breadth is 15 cm, then find its length​

Answer 1

Answer:

perimeter of the rectangle=2(Length + breadth)

Given breadth of rectangle=15cm

Given perimeter of rectangle=72cm

the length=?

=2(? + 15) =72

=? + 15=72/2=36

=? =36-15=21

therefore the length of the given rectangle=21cm

Answer 2

Answer:

L=21

Step-by-step explanation:

P=72

L=?

B=15

PERIMETER = 2(LENGTH + BREADTH)=72

                   =2(l + 15) =72

                   =l+15=72/2

                   =l+15=36

                  l =36-15

                    = 21

THEREFORE LENGTH IS 21  cm

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