Calculate . The answer may contain roots but not trigonometric functions.

im really bad on the geometry so any1 give me tips?

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- Sep 25th 2012, 06:38 AM #1

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- Sep 25th 2012, 06:48 AM #2

- Sep 25th 2012, 07:01 AM #3

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- Sep 25th 2012, 07:11 AM #4

- Sep 25th 2012, 07:24 AM #5

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- Sep 25th 2012, 07:29 AM #6

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- Sep 25th 2012, 07:33 AM #7

- Sep 25th 2012, 07:37 AM #8