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to work out a traingle side e.g. 5

is it we first times the 3 by its self to get 9 and then we times the 4 x 4 to get 16. then we take away the difference to get 5

9 + 16 = 25

Formula

3

is this correct?

^{2}is it we first times the 3 by its self to get 9 and then we times the 4 x 4 to get 16. then we take away the difference to get 5

^{2}?9 + 16 = 25

Formula

3

^{2}+ 4^{2}= 5^{2}is this correct?

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