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3 March, 01:25

Arc CD is 1/4 of the circumference of a circle. What is the radian measure of the central angle? π/4 radians

π/2 radians

2π radians

4π radians

+2
Answers (1)
  1. 3 March, 04:46
    0
    1 degree = PI/180

    since you are doing 1/4 of a circle, which is 90 degrees

    180/90 = 2

    so you would use PI/2
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