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March 26, 2017

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Find the approximate number of radians, to the nearest hundreth, in the angles with the following dergree measures.
a) 60 degrees
b) 128.5 degrees
c) 150 degrees
d) 80 degrees
e) 145 degrees
f) 325 degrees
g) 56.4 degrees
h) 230 degrees

Please help answer and explain 1 regular one and one decimal one!! IM CLUELESS TEACHER!!:(

  • Math - ,

    Memorize this one:

    180° = π radians

    then 1° = (π/180) radians
    then (whatever)° = (π/180)(whatever) radians

    so 60° = (π/180)(60) = π/3 radians

    56.4° = π/180 (56.4) = 47π/150 radians or appr .984 radians

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