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A river is 150 km long and has an average width of 50 meters. What is the approx

Practice Questions

Q1
A river is 150 km long and has an average width of 50 meters. What is the approximate area of the river?
  1. 7500 km²
  2. 300 km²
  3. 150 km²
  4. 100 km²

Questions & Step-by-Step Solutions

A river is 150 km long and has an average width of 50 meters. What is the approximate area of the river?
  • Step 1: Identify the length of the river, which is 150 km.
  • Step 2: Identify the average width of the river, which is 50 meters.
  • Step 3: Convert the width from meters to kilometers. Since 1 km = 1000 meters, 50 meters = 0.05 km.
  • Step 4: Use the formula for area, which is Area = Length × Width.
  • Step 5: Substitute the values into the formula: Area = 150 km × 0.05 km.
  • Step 6: Calculate the area: 150 × 0.05 = 7.5 km².
  • Area Calculation – Understanding how to calculate the area of a rectangular shape using the formula Area = Length × Width.
  • Unit Conversion – Converting measurements from meters to kilometers to ensure consistency in units during calculations.
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