Question

If the angle subtened by the radii at the center of a circle of circumference 60 cm is 30 degree, what will be the length (in cm) of the minor arc formed?

Answer 1

We have the circumference $=d=60cm$
Angle subtended by the radii at the center of the circle $=\theta =30$ degree
$\therefore$ Length of the minor arc $AB$ formed $=\frac{\theta }{360}\times d$

$=\frac{30}{360}\times 60$

$=\frac{60}{12}=5cm$