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12-03-2022
Mathematics

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Find the length of the third side. If necessary, round to the nearest tenth. 6 5

Find the length of the third side If necessary round to the nearest tenth 6 5 class=

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nfeinglass910 nfeinglass910

12-03-2022

Answer:

7.81

Step-by-step explanation:

Pythagorean theorem

[tex]\sqrt{6^{2} +5^{2} }[/tex]

[tex]\sqrt{61}[/tex]= 7.81

c = 7.81

Law of Cosines

[tex]c=\sqrt{b^{2} +a^{2}-2ba*cos(C) }[/tex]

[tex]c=\sqrt{6^{2}+5^{2}-((2*6*5)*cos(90)) }[/tex]

c = 7.81

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