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Cube Watermelons

Geometry & Trigonometry

Expensive but not optimised? - Explore the mathematical principles and create your own unique investigation.

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Introduction

Explore the difference in volume to a perfectly spherical watermelon.

Guiding Questions
  • Japanese farmers grow cube-shaped watermelons. For a given amount of melon, which shape has the least surface area?
  • Compare a cube and a sphere of equal volume. How much more rind area does the cube have?
  • Cubes pack better in boxes. Quantify the trade-off: wasted box space versus extra surface.
  • Is there a shape between cube and sphere that balances packing and surface? Explore one.
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Key Mathematical Concepts
Optimization Geometry Agriculture Volume
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