anonymous
  • anonymous
Convert the radian measure to degree measure. Use the value of π found on a calculator and round answers to two decimal places. 9pi/4
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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Schrodinger
  • Schrodinger
Just curious, do you have your unit circle values for radians memorized, e.g. pi/6, pi/4, pi/3?
anonymous
  • anonymous
not yet.. im working on it
anonymous
  • anonymous
are you using a scientific calculator?

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anonymous
  • anonymous
type in 9pi/4 in radian mode. press 2nd function press the (change degree mode) button till it goes to degree and the conversion is done
anonymous
  • anonymous
these are the answer choices.. A. 200π° B. 405° C. 160° D. 324°
Schrodinger
  • Schrodinger
No problem. Okay, so let's put the value 9pi/4 into a whole number based on that. So, if 8pi/4 is equal to 2pi, 9pi/4 must be equal to 2pi plus pi/4, right?
anonymous
  • anonymous
Yes
Schrodinger
  • Schrodinger
2pi is equal to 360 degrees, and pi/4 is equal to how many degrees, if pi is the angle of a semicircle, or 180 degrees?
anonymous
  • anonymous
would it be 160 then
anonymous
  • anonymous
?
Schrodinger
  • Schrodinger
Back, sorry. Sorry, but I don't believe so. If you divide 180/4, (because pi is 180), what do you get?
anonymous
  • anonymous
45
Schrodinger
  • Schrodinger
Yup. So, adding together 2pi and pi/4, what would be your sum in degrees?
anonymous
  • anonymous
hm..im not sure if it did it right..
anonymous
  • anonymous
let me see.. hmm
anonymous
  • anonymous
im kinda comfusing myself..
anonymous
  • anonymous
is it 405?
Schrodinger
  • Schrodinger
Back. Yeah, exactly.
anonymous
  • anonymous
okay, now i get it!! i know the steps..thank you!!
Schrodinger
  • Schrodinger
you could also do the same as others were saying by using your calculator to converts, but it's good to know how to do it with radians because of their usefulness later on. Just to make sure, do you know how to do it on a calculator, like those dudes were saying?
anonymous
  • anonymous
kinda.. im alil slow on it but i kinda understand

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