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posted by Anonymous Monday, June 20, 2011 at 1:40pm.

find side a if side b is 12in and side c is 18

I am assuming this nis a rt triangle. a^2 + b^2 = c^2. a^2 + (12)^2 = (18)^2, a^2 = (18)^2 - (12)^2 = 180, a = 13.4 in.

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