Question

The perimeter of a rectangle is 30 cm and
its width is 2/3of its length. Find its length.​

Answer 1

Answer:

9cm

Step-by-step explanation:

let the length of rectangle be x

so,breath of rectangle=2/3×x

perimeter of rectangle=2(l+b)

30cm=2(x+2/3x)

30/2=x+2/3x

15=5x/3

15×3=5x

45=5x

45/5=x

9cm=x