Question

derivation of formula to find a length of an arc

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Answer 1

Answer:

Formulas for Arc Length

Arc Length Formula (if ϴ is in degrees)  s = 2 π r (θ/360)

Arc Length Formula (if ϴ is in radians)  s = ϴ × r

Arc Length Formula in Integral Form  s= \int^{b}_a\sqrt{1+(\frac{dy}{dx})^2}dx

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Answer 2

Answer:

theta / 360 × 2 π r this is the formula