In a circle with radius $10\, cm ,$ the area of a minor sector is $75 \,cm ^{2}$. Then, the length of the arc of that sector is $\ldots \ldots \ldots . . cm$.
In a circle with radius $10\, cm ,$ the area of a minor sector is $75 \,cm ^{2}$. Then, the length of the arc of that sector is $\ldots \ldots \ldots . . cm$.
- A
$15$
- B
$25$
- C
$7.5$
- D
$12.5$
Similar Questions
Circumferences of two circles are equal. Is it necessary that their areas be equal? Why?
Circumferences of two circles are equal. Is it necessary that their areas be equal? Why?
In $Fig.$ arcs have been drawn of radius $21\, cm$ each with vertices $A , B , C$ and $D$ of quadrilateral $A B C D$ as centres. Find the area of the shaded region. (in $cm ^{2}$)
In $Fig.$ arcs have been drawn of radius $21\, cm$ each with vertices $A , B , C$ and $D$ of quadrilateral $A B C D$ as centres. Find the area of the shaded region. (in $cm ^{2}$)
In a circle with radius $14\,cm , \overline{ OA }$ and $\overline{ OB }$ are radii perpendicular to each other. Then, the area of the minor sector corresponding to $\angle AOB$ is $\ldots \ldots \ldots . cm ^{2}$.
In a circle with radius $14\,cm , \overline{ OA }$ and $\overline{ OB }$ are radii perpendicular to each other. Then, the area of the minor sector corresponding to $\angle AOB$ is $\ldots \ldots \ldots . cm ^{2}$.
The area of a square inscribed in a circle with radius $70 \,cm$ is $\ldots \ldots \ldots cm ^{2}$.
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The radius of a circle is $12 \,cm .$ Find its circumference and area $(\pi=3.14)$
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