Question

Example 3

Paula wants to buy decorative wallpaper as a border for her living room. The room measures 4 m by 5 m. What shape is the room? What equation needs to be used to calculate the perimeter of the room? How many meters of border will she need to buy?
A room measuring 4m by 5m is a

A) Square
B) Rectangle
C) Circle
D) Triangle

The equation that needs to be used is:
Perimeter=2×(Length+Width)Perimeter=2×(Length+Width)

Insert the values for length and width into the equation and calculate perimeter. Remember to include the units (meters) in the final answer to the question.

Answer 1

The room measuring 4m by 5m is a rectangle. The perimeter of the room is 18 meters. Paula will need to buy 18 meters of border.

Step-by-step explanation:

The room measuring 4m by 5m is a rectangle. To calculate the perimeter of the room, we use the equation Perimeter = 2 × (Length + Width). Inserting the values of length and width, we get Perimeter = 2 × (4 + 5) = 2 × 9 = 18 meters. Therefore, Paula will need to buy 18 meters of border for her living room.