Question

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

Answer 1

Answer:

perimeter of rectangle =2(l+b)

l length

b breath

l=2b

so perimeter

60= 2(l+b)

30=2b+b

30=3b

breath=10

length =20

Answer 2

Answer:

Breadth=10 cm and Length = 20 cm  

Step-by-step explanation:

Solution:

Let the breadth of the rectangle be x cm.

its length = 2x

Perimeter = 2 (length + breadth) = 2(2x + x) = 2 × 3x = 6x

As per the condition of the question, we have

6x = 60 ⇒ x = 10

Thus the required breadth = 10 cm

and the length = 10 × 2 = 20 cm.