kaylaelizabeth
4 questions on radian measure some one want to help me?



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kaylaelizabeth
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@Kayleedid can u help me

Kayleedid
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idk

kaylaelizabeth
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ok

HourglassMage
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k, give me the questions

kaylaelizabeth
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HourglassMage
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Convert 280º to radians.
280° x π/180° = 280°π/180

HourglassMage
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simplify to 28π/18

HourglassMage
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simplify further to 14π/9

HourglassMage
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Your answer is B

kaylaelizabeth
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thank you your awesome!! the next one is

HourglassMage
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3π/5 x 180/π = 540π/5π
cancel out pie
540/5
108
Your answer is C

kaylaelizabeth
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thank you!

HourglassMage
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hmm...I haven't learned cos and sin yet...

HourglassMage
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However...my calculator has. :D

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C

kaylaelizabeth
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thanks awesome!

HourglassMage
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radius x angle in radians
5 x 2pi/3
10.47 ≈10.5

HourglassMage
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A

kaylaelizabeth
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thank you so much you got them all right!!