A rectangular garden has a length that is three times its width. If the perimeter of the garden is 96 meters, find its length and width.

1 answer

Let the width of the garden be \( w \) meters. Since the length is three times the width, we can express the length as \( l = 3w \).

The formula for the perimeter \( P \) of a rectangle is given by:

\[ P = 2(l + w) \]

Given that the perimeter is 96 meters, we can set up the equation:

\[ 2(l + w) = 96 \]

Substituting \( l = 3w \) into the perimeter equation:

\[ 2(3w + w) = 96 \]

This simplifies to:

\[ 2(4w) = 96 \]

\[ 8w = 96 \]

Now, we can solve for \( w \):

\[ w = \frac{96}{8} = 12 , \text{meters} \]

Now that we have the width, we can find the length:

\[ l = 3w = 3 \times 12 = 36 , \text{meters} \]

Thus, the dimensions of the garden are:

  • Width: \( 12 \) meters
  • Length: \( 36 \) meters

So, the final answer is:

  • Length = 36 meters
  • Width = 12 meters