gaara438125
help on a triangle...



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gaara438125
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gaara438125
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Find the value of x. Round to the nearest tenth. The diagram is not drawn to scale.
i know i use Cos

gaara438125
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Sin rather....opposite/hypotenuse

RadEn
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it is cosine :
cos22 = x/11 or
x = 11 * cos22 = ... ?

gaara438125
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10.99

RadEn
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negative ?

gaara438125
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10.19, i forgot to put in that 22 was degrees and not radians.

RadEn
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Ohh... i see :)
that's right