Question

In a rectangle, the length is twice the breadth and the perimeter of the rectangle is 48 cm. The area of the rectangle is:

विकल्प

• 512 cm²

• 128 cm²

• 288 cm²

• 144 cm²

Answer 1

128 cm²

Explanation:

Let the breadth of rectangle = x

∴ Length `(l)` = 2x  ......(Given)

Perimeter ofrectangle = `2(l + b)`

⇒ `2(2x + x)` = 48

⇒ x = 8 cm

Now, Area of rectangle = `l xx b`

= 2 × 8 × 8

= 128 cm²