In $\odot( O , 4), \widehat{ ACB }$ is a minor arc and $m \angle AOB =45 .$ Then, the length of minor $\widehat{ ACB } $ is $\ldots \ldots \ldots \ldots$
In $\odot( O , 4), \widehat{ ACB }$ is a minor arc and $m \angle AOB =45 .$ Then, the length of minor $\widehat{ ACB } $ is $\ldots \ldots \ldots \ldots$
- A
$3 \pi$
- B
$2 \pi$
- C
$ \pi$
- D
$4 \pi$
Similar Questions
$\overline{ OA }$ and $\overline{ OB }$ are radii of a circle perpendicular to each other. If $OA =5.6\, cm .$ then the area of the minor sector formed by those radii is .......... $cm ^{2}$.
$\overline{ OA }$ and $\overline{ OB }$ are radii of a circle perpendicular to each other. If $OA =5.6\, cm .$ then the area of the minor sector formed by those radii is .......... $cm ^{2}$.
The length of the minute hand of a clock is $10.5\, cm .$ Find the area of the region swept by it between $2.25 \,PM$ and $2.40 \,PM$. (in $cm^2$)
The length of the minute hand of a clock is $10.5\, cm .$ Find the area of the region swept by it between $2.25 \,PM$ and $2.40 \,PM$. (in $cm^2$)
In a circle with radius $8.4\, cm ,$ a minor arc subtends an angle of measure $60$ at the centre. Find the area of the minor sector and the major sector corresponding to this arc.
In a circle with radius $8.4\, cm ,$ a minor arc subtends an angle of measure $60$ at the centre. Find the area of the minor sector and the major sector corresponding to this arc.
In a circle with radius $21 \,cm$, the length of a minor arc is $33 \,cm .$ Find the measure of the angle subtended at the centre by this arc. Also find the area of the minor sector and the minor segment formed by it.
In a circle with radius $21 \,cm$, the length of a minor arc is $33 \,cm .$ Find the measure of the angle subtended at the centre by this arc. Also find the area of the minor sector and the minor segment formed by it.
The length of the minute hand of a clock is $5\, cm$. Find the area swept by the minute hand during the time period $6: 05$ $a.m.$ and $6: 40$ $a.m.$ (in $cm^2$)
The length of the minute hand of a clock is $5\, cm$. Find the area swept by the minute hand during the time period $6: 05$ $a.m.$ and $6: 40$ $a.m.$ (in $cm^2$)