Question

question 1 points 1
find the perimeter of a rectangle if the length and width are 6 cm and 9 cm, respectively.

15 cm

22 cm

30 cm

45 cm

Explanation:

Step1: Recall the formula for the perimeter of a rectangle

The formula for the perimeter \( P \) of a rectangle is \( P = 2\times (l + w) \), where \( l \) is the length and \( w \) is the width.

Step2: Substitute the given values into the formula

Given \( l = 6 \, \text{cm} \) and \( w = 9 \, \text{cm} \), we substitute these values into the formula:
\( P = 2\times(6 + 9) \)

Step3: Simplify the expression inside the parentheses first

First, calculate \( 6 + 9 = 15 \).

Step4: Multiply by 2

Then, \( P = 2\times15 = 30 \, \text{cm} \).

Answer:

30 cm (corresponding to the option "30 cm")