SOLUTION: (5)2+(12)2+(4)2=(c)2

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Question 1024215: (5)2+(12)2+(4)2=(c)2
Answer by addingup(3677) (Show Source):
You can put this solution on YOUR website!
(5)2+(12)2+(4)2=(c)2
Multiply, then add:
42 = c(2) Divide both sides by 2 to get your answer. You should get 21