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Mathematics 6 Online
OpenStudy (anonymous):

Find side AC.

OpenStudy (anonymous):

OpenStudy (kropot72):

The cosine of angle A is \[\cos A=\frac{adjacent side}{hypotenuse}=\frac{AC}{3}\] Can you multiply both sides of the equation to get an expression for AC?

OpenStudy (kropot72):

@ello_bello Do you follow?

Directrix (directrix):

cos (40) = AC/3 @ello_bello

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