Class 10 maths chapter 12 example 3
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Class 10 maths chapter 12 example 3
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Answer is 462 cm²
Explanation:
In a given circle,
Radius (r) = 21 cm
And,
Φ = 120°
Area of segment AYB = Area if sector OAYB - Area of ∆OAB
Area of sector OAYB = Φ/360° × πr²
=> 120/360 × 22/7 × (21)²
=> 1/3 × 22/7 × 21 × 21
=> 22 × 21
=> 462 cm²
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