Question

The perimeter of a rectangular playing field is 90cm. It's length is twice the breadth. What is its length?

Answer 1

Answer:

30 cm

Step-by-step explanation:

Let Breadth be "x"

Length = 2x

Perimeter of Rectangle = 2(l+b)

2(2x+x)=90

3x = 90/2 = 45

x = 45/3 = 15

LENGTH = 2x = 2×15 = 30cm (Ans.)