Questions: Apply the process of adding and subtracting decimals to solve questions 5-6. 5. A sandbox measures 2.8 meters by 1.9 meters. How many meters of wood will be needed to go around the perimeter of the sandbox?

Solution Steps

To find the perimeter of the sandbox, we need to add the lengths of all four sides. Since the sandbox is rectangular, the perimeter \( P \) can be calculated using the formula \( P = 2 \times (length + width) \).

The sandbox has a length of \(2.8\) meters and a width of \(1.9\) meters.

The perimeter \(P\) of a rectangle is given by the formula: \[ P = 2 \times (\text{length} + \text{width}) \]

Substituting the given values: \[ P = 2 \times (2.8 + 1.9) \]

First, add the length and the width: \[ 2.8 + 1.9 = 4.7 \]

Next, multiply the sum by 2 to find the perimeter: \[ P = 2 \times 4.7 = 9.4 \]

Final Answer