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प्रश्न
Area of a sector of a circle of radius 15 cm is 30 cm2. Find the length of the arc of the sector.
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उत्तर
Given: Radius of the sector (r) = 15 cm
Area of the sector (A) = 30 cm2
Formula: Area of the sector = \[\frac{1}{2}\] × Length of the arc × Radius
30 = `1/2 xx l xx 15`
`l = (30 xx 2)/15`
`l = 60/15`
`l` = 4 cm
Thus, the length of the arc of the sector is 4 cm.
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