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27 July, 01:01

If l = 12 cm and m = 5 cm what is the length of n

a square root of 119 cm

b 10 cm

c 13 cm

d 14 cm

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Answers (1)
  1. 27 July, 01:10
    0
    You have to use the Pythagorean Theorem. Follow what I do, and if you have any questions be sure to tell me. a^2+b^2=c^2 This is the formula. But don't get worried by the variables, you can always switch a and b for l and m. Also c can be switched for n. So not to get this confusing, I will substitute the letterings for you, l^2+m^2=n^2 Lets now substitute the variables with the numbers. 12^2+5^2=c^2 169=c^2 Remember that n equals to the square root of 169. n = √169 n=13
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