Question

the length of a rectangle is twice its breadth. If perimeter is 72 cm then find its lenght and breadth​

Answer 1

Answer:

12 cm

Step-by-step explanation:

l=2x

b=x

p=2(l+b)

72=2(2x+x)

72=2(3x)

72=6x

x=72/6=12

breadth is x so

b=12 cm

Answer 2

Answer:

Let the breadth be b

Then, length = 2b  (given that length is 2 times the breadth)

Perimeter = 2 × (l+b)

72 cm = 2 × (l+b)

72 cm = 2 × (2b+b)

72 cm = 2 × 3b

72 cm = 6b

b = 72 cm ÷ 6

b = 12 cm

So, breadth = b = 12 cm

length = 2b = 2 × 12 cm = 24 cm

Step-by-step explanation: Hope you like the solution. Please mark me as the brainliest.