Question

If r = 1 and 0 = pi/6, what is the approximate arc length?

Answer 1

Remember that the formula for the arc lenght s over a cirfumference is:

$s=r\theta$

Where:

r is the radius of the circumference

Theta is the angle related to the arc (in radians)

Thereby, the arc lenght would be:

$s=1\cdot\frac{\pi}{6}\rightarrow s=\frac{\pi}{6}\rightarrow s=0.524$

(Answer: Option B)