Trig question 9

label Mathematics
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Given Triangle ABC  with a = 6, b = 18, and  m<C=88 deg  , find c. Round the cosine value to the nearest thousandth and answer to the nearest hundredth.

Dec 16th, 2014

18.77

c2 =a2+b2-2ab Cos C

 

a2 = 62+182-2*6*18* cos 88

=352.4617

a = sqrt(352.4617) =18.77


Dec 16th, 2014

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Dec 16th, 2014
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Dec 16th, 2014
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