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Example 10 2.37-27 B C D be any 4 points...

Example 10 2.37-27 B C D be any 4 points and E and F be the middle points of AC and BD respectively then AB + BC + CD + AD = ? а) ЗЕР b) 4EF Solution: c) 4EF d) ЗЕF - + 2b is collinen

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