Question

The length of a rectangular lawn is thrice its width. The perimeter is 48 m.what is the length and width?

Answer 1

Answer:

Step-by-step explanation:

L=3W

We also know that perimeter = 2(L+W)=48

L+W=24

3W+W=24  (from 1st equation)

width =24/4= 6 m

so length = 18 m

Answer 2

Step-by-step explanation:

The length of a rectangular lawn is thrice its width.

Let,

• Width of a rectangular lawn = x
• Length of a rectangular lawn = 3x

The perimeter is 48 m. (Given)

Perimeter of rectangle = 2 (Length + Width)

★ According to the Question :

⇒ 48 = 2 [(3x) + (x)]

⇒ 48 = 6x + 2x

⇒ 48 = 8x

⇒ x = 48/8

⇒ x = 6

Width of a rectangular lawn = 6 m

• Length of a rectangular lawn = 3x

⇒ 3 × 6

⇒ 18

Length of a rectangular lawn = 18 m

Therefore,

Width of a rectangular lawn = 6 m

Length of a rectangular lawn = 18 m