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| Red Area = 0.0216942612547 |
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| Lengths of two Radiuses |
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| | OT | = X = 1.61803398875 |
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| Angle ECD = X = 15° |
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| | AG | ² + | CD | ² = | DG | ² |
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| Orange = 7 Square Units |
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| Shaded Fraction = 1 / 2 = 0.5 |
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| Shaded Area = 25 Square Units |
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| Shaded Area = 1 Square Unit |
 |
| Red Area = 252 Square Units |
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