Baseballguy101
  • Baseballguy101
Find the measure of angle x. Round your answer to the nearest hundredth.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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Baseballguy101
  • Baseballguy101
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Baseballguy101
  • Baseballguy101
i know the missing side is 5 where do i go from there?
MrNood
  • MrNood
With respect to angle x, the side labelled 12 is the 'adjacent side the side labelled 13 is the hypotenuse you can use sin, cos or tan to solve questions lik ethis which of those 3 options uses adjacent/hypotenuse?

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Baseballguy101
  • Baseballguy101
cos
MrNood
  • MrNood
ok so write cos x = adj /hyp and put in the numbers
Baseballguy101
  • Baseballguy101
so it would be co x = 5/12?
MrNood
  • MrNood
no it's adjacent /hyp the side labelled 12 is the 'adjacent side the side labelled 13 is the hypotenuse
Baseballguy101
  • Baseballguy101
ooohhh ok so cos x = 12/13
MrNood
  • MrNood
correct now use a calculator to get x
Baseballguy101
  • Baseballguy101
I know I have to do 13 cos x =12 where do I go now?
MrNood
  • MrNood
no you have cos x = 12/13 so work out 12/13 then that number is the value of cos (x) your calculator then will have 'inverse cos' or ' arc cos' or 'cos ^-1' that function is the opposite of finding the cos of an angle - it fids the angle whose cos is 12/13
Baseballguy101
  • Baseballguy101
sorry this is the hardest part of geometry for me. I have cos (x) = .923076923076923 so just divide that by arc cos and im done?
MrNood
  • MrNood
no - it is not a division the arc cos is a function once you have the number then press arcos DONT forget to round to nearest 100th as asked by question
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MrNood
  • MrNood
suppose oyu have a number 60on your calculator when you press the cos button it works out cos 60 (and show 0.5 = cos 60) if you then press ARC cos it will tell you then angle whose cos is 0.5 i.e. 60 arc cos or cos^-1 is the OPPOSITE of finding the cos - it tells oyu the ANGLE
Baseballguy101
  • Baseballguy101
i got 22.61 is that correcT?
MrNood
  • MrNood
Did you ROUND the answer properly?
Baseballguy101
  • Baseballguy101
so 22.60?
MrNood
  • MrNood
what was the first 5 numbers in the answer on your calculator
Baseballguy101
  • Baseballguy101
22.619
Baseballguy101
  • Baseballguy101
i got it now 22.62
MrNood
  • MrNood
ok - well done
Baseballguy101
  • Baseballguy101
thanks for the help!! I actually understand this now!
MrNood
  • MrNood
good - that is MUCH better than just getting ht e answer

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