Question

In a circle of radius $6$ cm, a chord of length $10$ cm makes an angle of $110$ ${}^{\circ }$ at the center of the circle. Find the circumference of the circle.

Answer 1

$\Rightarrow$ $r=6cm$

$\Rightarrow$ Circumference of the circle $=2\pi r$

$\therefore$ Circumference of the circle $=2\times 3.14\times 6$

$\therefore$ Circumference of the circle $=37.68cm$