Perimeter of a square = 4 × side length. Then multiply by the number of laps.
• Side of square field = 75 m
• Perimeter = 4 × 75 = 300 m
• Leon ran 3 laps: 3 × 300 = 900 m
Leon ran 900 m in total.
Check: 3 × (4 × 75) = 3 × 300 = 900. ✓
Final Answer: 900