Question

Find the arc length of the circle with a central angle of 30 degrees and a radius 12. Leave the answer in terms of π.

Answer 1

$\text{Arc length,}\\\\s = r \theta \\\\~~=12\cdot \left(30 \times \dfrac{\pi}{180} \right)\\\\~~=12\cdot \dfrac{\pi}6\\\\~~=2\pi$