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Challenge 73: A Shard or Two
Figure This!
A Shard or Two: How big was the plate?
Helix tosses the plane.
Helix tosses the plane.
Helix tosses the plane.
Challenge 74: The Race
The Race: Who runs faster?
Challenge 75: Glide Ratio
Glide Ratio: How far can you fly a paper airplane?
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Challenge 76: Visualizing
Visualizing: Is seeing believing?
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