In a circle with radius $20\, cm ,$ the area of a sector formed by $10\, cm$ long arc is............. $cm ^{2}$
In a circle with radius $20\, cm ,$ the area of a sector formed by $10\, cm$ long arc is............. $cm ^{2}$
- A
$100$
- B
$200$
- C
$50$
- D
$150$
Similar Questions
The length of the minute hand of a clock is $14\, cm .$ The area of the region swept by it in $10$ minutes is $\ldots \ldots \ldots cm ^{2}$.
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