Question

The length of a rectangle is twice its breadth. If its perimeter is 60 cm,
find the length and the breadth of the rectangle​

Answer 1

Answer:

b= 10m  l=20m

Step-by-step explanation:

l=2b

perimeter= 2(l+b)

2*(2b+b)=60

2*(3b)=60

6b=60

b=10m

l=2b

l=2*10

l=20m

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Answer 2

Answer:

breadth = 10cm

length = 20cm

Step-by-step explanation:

Let the breadth of the triangle be 'x'.

So length = 2x

Perimeter = 60cm

Perimeter of a rectangle = 2(l+b)

so, 2(l+b)=60cm

here , b = x

l = 2x

Substituting..

we get,

2(2x+x)=60

2(3x)=60

6x=60

x=10

so breadth=10cm

and length = 2×10=20cm..

Hope u understood... :)