Question

6. The length of a rectangle is twice its breadth. If its perimeter is 48 cm, find the dimensions
of the rectangle.​

Answer 1

Answer:

let the breadth be X

so the length be 2x

perimeter = 48cm

2(l+b)= 48

2(2x+X) = 48

2x+X= 48/2

3x= 24

X= 24/3

X= 8

Breadth = 8cm

Length = 16cm

Answer 2

Answer:

Step-by-step explanation:

let l be breadth of the rectangle

and b be length of the rectangle

-> 2xl = b                   - 1

perimeter = 2(l+b) = 48cm          -2

substituting 1 in 2 -

= 2(l +2l)

= 2(3l)

= 6l

but we know perimeter = 48cm

so , 6l = 48

or l = 8

breadth = 8 cm and length =(8x2)=16