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December 20, 2014

December 20, 2014

Posted by **denise** on Monday, February 18, 2013 at 3:01pm.

- geometry -
**Steve**, Monday, February 18, 2013 at 4:39pmYou can't construct the 4 right angles necessary. Take a look at

http://mathdl.maa.org/images/upload_library/4/vol1/hypertoolbox/rectang.htm

to watch the attempt at construction.

Lines perpendicular to the same line are not parallel.

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