Question

Side of a square garden is $30m$. If the scale used to draw its picture is $1cm:5m$, the perimeter of the square in the picture is

• A. $24cm$
• B. $20cm$
• C. $28cm$
• D. $30cm$

Answer 1

The correct option is A

$24cm$

Explanation of Correct Answer:

Perimeter of the square:

1. The total length of a square's boundary is defined as the perimeter of the square.
2. $\mathbf{P}\mathbf{}\mathbf{=}\mathbf{}\mathbf{4}\mathbf{\times }\mathbf{side}$ is the formula for calculating the perimeter of a square.

Square garden's side $=30m$

The scale for drawing a garden image is $1cm:5m$

As a result, the square garden's perimeter is

$$\begin{gathered} =4\times 30 \\ =120m \end{gathered}$$

Perimeter to draw garden in pictures $=\frac{120}{5}$

$=24cm$

As a result, the perimeter is $24cm.$

Hence, the correct answer is option(A)