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Is anyone really good at math?

Is anyone really good at math?-example-1

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We have: L² + M² = N²

=> L² = N² - M² = 37² - 35² = 144 = 12²

=> L = 12

ANSWER: B.12

OK done. Thank to me :3

User Ethan C
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3 votes

Answer: 12 cm

Explanation:


\mathtt{Using\ the \ pythagorean \ theorem: \\}


a^2+b^2=c^2, \\\ we\ can\ plug\ in\ values\ for\ a,\ b,\ and\ c


L=a\ and\ M=b\ and\ N=c

Therefore,


L^2+35^2=37^2\\L^2+1225=1369\\L^2=144\\√(L^2) =√(144) \\L=\pm12\\Taking\ only\ the\ positive\ answer,\ we\ get:\\\large\boxed{L = 12cm}

User Guerdy
by
8.9k points

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