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Please help asap, and if you can explain why after the answer, please and thank you❤️

Please help asap, and if you can explain why after the answer, please and thank you-example-1
User ISanych
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1 Answer

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DF=14. Because DE is half the line and EF is the other half the line you add up both the lengths to get the length of whole line.
DE=EF. DE and EF both equal 7 so they are equal.
User Starpause
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