Question
What is the central angle of a sector with an arc length of 10 cm in a circle of radius 5 cm?
This question was previously asked in
SSC CGL 2025 Tier 2 Paper 1 Question Paper (19-Jan-2026)
The correct answer is
2 radians
Arc-length formula: \(s = r\theta\), where \(\theta\) is the central angle in radians.
\(\theta = \dfrac{s}{r} = \dfrac{10}{5} = 2\) radians.
Hence, the central angle is 2 radians.
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