Finding the Perimeter of a 32-by-20-Meter Rectangle
Apply the geometry problem-solving strategy using the rectangle perimeter formula.
Problem: The length of a rectangle is 32 meters and the width is 20 meters. What is the perimeter?
- Read: A rectangle has m and m; find the perimeter. Draw and label the figure.
- Identify: The perimeter of the rectangle.
- Name: Let = the perimeter.
- Translate: Write the perimeter formula and substitute the given values:
- Solve: Multiply: . Add: .
- Check: Add all four sides individually: checkmark
- Answer: The perimeter of the rectangle is 104 meters.
This example demonstrates the direct application of : substitute both known dimensions, multiply each by 2, and add the results. The check step uses an alternative method — summing all four sides — to verify the answer independently.
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