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30-09-2016
Mathematics

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The diagonals are each twice the length of a side. True or false

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FriendToDino FriendToDino

30-09-2016

This is only sometimes true in polygons

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30-09-2016

False, for example:
In a square with sides length 2, we can see that the diagonal is \sqrt{2^2+2^2}=\sqrt{8}=2\sqrt{2}

2\sqrt{2} is not twice the length of 2.

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