Question

The perimeter of a rectangle is 75 cm. Its

Answer 1

Answer:

length = 25 cm , breadth = 12.5 cm

Step-by-step explanation:

let the breadth be b then the length = 2b

The perimeter is the sum of the 4 sides and is equal to 75 , then

b + b + 2b + 2b = 75 , that is

6b = 75 ( divide both sides by 6 )

b = 12.5

Then

breadth = 12.5 cm and length = 2 × 12.5 = 25 cm

Answer 2

Let the length be 2x

Let the breadth be x

ATQ,

$75 = 2(2x + x)$

Solve for x ~

$75 = 2 \times 3x$

$75 = 6x$

$6x = 75$

$6x \div 6 = 75 \div 6$

$x = 12.5$

Now,

• Length = 2x = 2×12.5 = 25cm
• Breadth = x = 12.5cm