Question

arc length =s=..........​

Answer 1

Answer:

In circles

$2\pi \: r( \frac{ \theta}{2\pi} ) \: \: \: \: or \: \: \: \: r \theta$

for more complex functions

$let \: \: \: \: y = f(x) \\ s = \int \: \sqrt{ ({dx)}^{2} + ( {dy}) {}^{2} } = \int \: \sqrt{1 + (\frac{dy}{dx}) {}^{2} } dx$