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April 19, 2015

April 19, 2015

Posted by **Laurena** on Wednesday, July 25, 2012 at 8:08pm.

- Maths -
**Ms. Sue**, Wednesday, July 25, 2012 at 8:14pmYou're looking at a right-angle triangle. Use the Pythagorean Theorem.

a^2 + b^2 = c^2

a^2 + 9^2 = 12^2

a^2 + 81 = 144

a^2 = 63

a = 7.94 meters

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