anonymous
  • anonymous
Ok so I took this EOC and I want to know ho you solve this kind of problem. (Its in a drawing)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
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amistre64
  • amistre64
i cant read the scribble
amistre64
  • amistre64
it has to do with the arccos of the angle

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anonymous
  • anonymous
The side length is 176 and the degrees is 72 inside the triangle
amistre64
  • amistre64
then cos(72) = s/176 176 cos(72) = s you justs got to remember your definitions on your trigs
anonymous
  • anonymous
The question is what is the missing side length based on that information
amistre64
  • amistre64
i assume it a rt tri?
amistre64
  • amistre64
make sure your calc is on degrees and not radians; or simply substitute 72 with, 72pi/180
anonymous
  • anonymous
its 72 degrees
amistre64
  • amistre64
yes, but calculators can be set to read degrees or radians; 72 degress is NOT 72 radians
amistre64
  • amistre64
72 degress = 72pi/180 radians
anonymous
  • anonymous
Ok then that.. how would you solve it? Cause im like they only gave me the angle degrees and a side length and are asking for the other side length
amistre64
  • amistre64
the point being: the side length is determined by the cosine function cos = side/hypot cos(72) = s/176 ; multiply both sides by 176 176 cos(72) = s
anonymous
  • anonymous
so what would it be?
amistre64
  • amistre64
do you know how to use a calculator?
amistre64
  • amistre64
if not, the wolf will give an approximate value; otherwise, that is the exact value

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