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Math Help - Another Circle

  1. #16
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    A central angle is 0 \le \theta  \le 2\pi . Now because 2\pi  \propto 6.283 then 88.8 cannot be a radian measure. It must be in degrees, 88.8^ \circ   \propto 1.55rad.
    So if the radius is 10 the an arc of 88.8^ \circ is about 15.5 units in length.

    You must not confuse radians with degrees. All real mathematics uses radians; almost all calculators use radian measure as the default setting.
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  2. #17
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    haha i guess my class are not real mathematicians yet

    thanks jhevon for the degrees conversion
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  3. #18
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by stones44 View Post
    haha i guess my class are not real mathematicians yet
    perhaps. i never started learning about radians in math until my last year in high school, which was kind of optional by the way. a lot of my peers never saw radians in high school math. do you use radians at all in your class? if so, you may need to know some conversion factors
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