Using sums of radicals very rusty

westworld

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Feb 1, 2012
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Given a RT TRIANGLE ABC.
Given CA = 12, CB = 1 DOES BA = SQRT OF CA^2 + CB^2 = SQRT OF 144 + SQRT OF 1 =13? OR IS IT SQRT OF 145? My algebra failes me here. THANKS
 
oops

simple isnt it. thanks and i will google this type again. just trying to get to grand maws house. never mind. delete this post ok?
 
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