The curved sector boundary, which is a component of the circle's circumference, is known as the arc length.
To calculate the Area of a sector of a Circle, the formula is:
Length of an Arc = $ \frac{Θ}{360} × 2πr $(where $ Θ$ is angle of the sector and $ r$ is radius)
Question : The following formula is used to calculate which of the following? $\frac{\text { Angle of arc at centre }}{360°} \times \pi \times \text{Diameter}$
Option 1: Length of a sector
Option 2: Area of an arc
Option 3: The radius of a circle
Option 4: Length of an arc
Question : In a circle, an arc subtends an angle of 84° at the centre. If the length of the arc is 22 cm, then the radius of the circle (in cm) is equal to: Take $\pi=\frac{22}{7}$
Option 1: 19
Option 2: 15
Option 3: 17
Option 4: 13
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