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This shows that all the quadrilaterals will have angle A between 0 and 180, B between 57.1 and 180, C between 0 and 78.5 and D between 44.4 and 180. Can you find any special quadrilaterals with angles in these ranges? Are there any with right angles in? Any cyclic quadrilaterals? We would love to hear about anything interesting you discover! |
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