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14-03-2020
Mathematics

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#10 using the right angle below find the cosine of angle B.

10 using the right angle below find the cosine of angle B class=

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14-03-2020

[tex]\cos B = \frac{\text{adjacent side}}{\text{hypotenuse}} = \frac{5\sqrt{2}}{10} = \frac{\sqrt{2}}{2}=0.707[/tex]

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