The length of the minute hand of a clock is $14\, cm .$ The area of the region swept by it in $10$ minutes is $\ldots \ldots \ldots cm ^{2}$.
$616$
$154$
$102.67$
$308$
In $\odot( O , 12)$, minor $\widehat{ ACB }$ subtends an angle of measure $30$ at the centre. Then. the length of major $\widehat{A D B}$ is $\ldots \ldots \ldots . . cm .$
The formula to find the length of a major arc of a circle is ............
In $\odot( O , 4), \widehat{ ACB }$ is a minor arc and $m \angle AOB =45 .$ Then, the length of minor $\widehat{ ACB } $ is $\ldots \ldots \ldots \ldots$
Find the area of the shaded region given in $Fig.$
In a circle with radius $7\,cm ,$ the perimeter of a minor sector is $\frac{86}{3}\,cm .$ Then, the area of that minor sector is $\ldots \ldots \ldots \ldots cm ^{2}$.