The length of the minute hand of a clock is $12\,cm .$ The area of the region swept by it in $5$ minutes is $\ldots \ldots \ldots . . cm ^{2} .(\pi=3.14)$
The length of the minute hand of a clock is $12\,cm .$ The area of the region swept by it in $5$ minutes is $\ldots \ldots \ldots . . cm ^{2} .(\pi=3.14)$
- A
$36.98$
- B
$37.68$
- C
$36.78$
- D
$314$
Similar Questions
In $\odot( O , r),$ minor $\widehat{ ACB }$ subtends an angle of measure $72$ at the centre. Then, the ratio of the length of minor $\widehat{A C B}$ and the circumference of the circle is ............
In $\odot( O , r),$ minor $\widehat{ ACB }$ subtends an angle of measure $72$ at the centre. Then, the ratio of the length of minor $\widehat{A C B}$ and the circumference of the circle is ............
The perimeter of a semicircular table-top is $3.60\,m .$ Then, its radius is $\ldots \ldots \ldots . . cm .$
The perimeter of a semicircular table-top is $3.60\,m .$ Then, its radius is $\ldots \ldots \ldots . . cm .$
The ratio of the areas of the circles with radii $8\,cm$ and $12 \,cm$ is $\ldots \ldots \ldots \ldots .$
The ratio of the areas of the circles with radii $8\,cm$ and $12 \,cm$ is $\ldots \ldots \ldots \ldots .$
In the adjotning flgure, $PS$ is diemeter of a circle and $PS$ $=12$. $P Q=Q R=R S$ Semicircles are drawn with dinmeter $\overline{\text { PQ }}$ and $\overline{QS}$. Find the perimeter and the area Find the perimeter and the arce of the shaded region. $(\pi=3.14)$
In the adjotning flgure, $PS$ is diemeter of a circle and $PS$ $=12$. $P Q=Q R=R S$ Semicircles are drawn with dinmeter $\overline{\text { PQ }}$ and $\overline{QS}$. Find the perimeter and the area Find the perimeter and the arce of the shaded region. $(\pi=3.14)$
In $\odot( O , r),$ chord $\overline{ AB }$ subtends a right angle at the centre. The area of minor segment $\overline{ AB } \cup \widehat{ ACB }$ is $114\,cm ^{2}$ and the area of $\Delta OAB$ is $200\,cm ^{2} .$ Then, the area of minor sector $OACB$ is ......... $cm ^{2}$.
In $\odot( O , r),$ chord $\overline{ AB }$ subtends a right angle at the centre. The area of minor segment $\overline{ AB } \cup \widehat{ ACB }$ is $114\,cm ^{2}$ and the area of $\Delta OAB$ is $200\,cm ^{2} .$ Then, the area of minor sector $OACB$ is ......... $cm ^{2}$.