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Last updated at April 16, 2024 by Teachoo

Example 12 Find the area of a circle of radius 30 cm (use π = 3.14).Radius = r = 30 cm Area of circle = 𝜋 r2 = 3.14 × (30)2 = 314/100 × 900 = 314/1 × 9 = 2,826 cm2 ∴ Required area is 2,826 cm2