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Old 02-12-10, 08:06 PM
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AEO
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so we know hyp., which is 3 and b=2a

http://faculty.uoit.ca/kay/G10_AppWebPage/

Pythagorean theorem says: c^2=(a^2)+(b^2)
since b=2A and c=3, you can substitute it into the equation and write it as
9=(a^2)+(2a^2)
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