convert to degrees angles


label Calculus
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*********Cos C = (100+144-256)/(2*10*12) =-12 /240 = -0.05********** how do i get this answer in degrees (Angle), can someone walk me though the answer is bellow

answer is C = 92.87 degrees (angle)

Nov 23rd, 2017

cos C = -0.05

taking inverse,

cos^-1 cos C = Cos^-1 (-0.05)
or, C = Cos^-1 (-0.05)

so if you are using a calculator find Cos inverse of -0.05 and the answer would be 92.87 degrees.

Hope this helps :)

Dec 17th, 2014

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Nov 23rd, 2017
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Nov 23rd, 2017
Nov 24th, 2017
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