The length of the minute hand of a clock is $14 \,cm .$ If the minute hand moves from $1$ to $10$ on the dial, then $\ldots \ldots \ldots \ldots cm ^{2}$ area will be covered.
$462$
$154$
$308$
$616$
The radii of two concentric circles are $14\, cm$ and $10.5 \,cm .$ Then, the difference between their circumferences is $\ldots \ldots \ldots . cm .$
The numerical value of the area of a circle is greater than the numerical value of its circumference. Is this statement true? Why?
Two minor sectors of two distinct circles have the measure of the angle at the centre equal. If the ratio of their areas is $4: 9,$ then ratio of the radii of the circles is ........
A chord of a circle of radius $20\, cm$ subtends an angle of $90^{\circ}$ at the centre. Find the area of the corresponding major segment of the circle. (Use $\pi=3.14)$ (in $cm^2$)
The area of a sector formed by a $12\,cm$ long arc in a circle with radius $12\,cm$ is $\ldots \ldots \ldots . . cm ^{2}$.