 |
| Red Fraction = 0.228051280981 |
 |
| Perimeter of Red 5-gon = 25 |
 |
| Proof: c² + x² = a² + b² |
 |
| ABC = CD = X = 90 |
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| Angle BAC = 46.4365266467 |
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| Green - Red = 4.71238898 |
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| Perimeter of Triangle = 80 |
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| Red Fraction = 0.5649044 |
 |
| Shaded Fraction = 1 / 2 |
 |
| r = 1 ⇒ R = 2.41421356237 |
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