Question

The perimeter of a rectangle is 30cm. If its breadth is 3cm more than its length, then its length is​

Answer 1

Answer:

length=9cm

Step-by-step explanation:

given

perimeter=30cm

let length be x,then breadth=x+3cm

we know perimeter=2(l+b)

=2(x+x+3)

=2(2x+3)=30cm

=2x+3. =15cm

=2x. =15-3

=2x. =12

=x. =12/2=6

so breadth (x)=6cm

length (x+3)=6cm+3cm=9cm

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