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27 November, 09:45

The circumference of a circle increases as the diameter increases, where π is the constant of proportionality. Which of these is the constant of proportionality for the length of an arc on a circle for a particular value of θ (in radians) ?

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  1. 27 November, 09:57
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    Length of arc = radius * theta

    if theta is constant (particular value), length is directly proportional to radius or D/2.

    so if u looking in terms of D, the constant of proportionality would be theta/2
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