Your mum had put crackers aside after diwali and you got a chance to burst the crackers again. The figure shows the cracker and it left a trace of a circle. Find the area of the ground it covered knowing that the sparkle was of 28 cm from the cracker.

2156 cm²

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2464 cm²

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4259 cm²

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4258 cm²

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Solution

The correct option is B
2464 cm²

Area of the circle = π r²
Radius of the circle traced is 28 cm as the cracker is the center and the sparkle is the radius.
So area of ground covered by the cracker = (22/7) × 28 × 28 = 2464 cm²

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Your mum had put crackers aside after diwali and you got a chance to burst the crackers again. The figure shows the cracker and it left a trace of a circle. Find the area of the ground it covered knowing that the sparkle was of 28 cm from the cracker.

The correct option is B 2464 cm2Area of the circle = π r2 Radius of the circle traced is 28 cm as the cracker is the center and the sparkle is the radius. So area of ground covered by the cracker = (22/7) × 28 × 28 = 2464 cm2

The correct option is B
2464 cm²

Area of the circle = π r²
Radius of the circle traced is 28 cm as the cracker is the center and the sparkle is the radius.
So area of ground covered by the cracker = (22/7) × 28 × 28 = 2464 cm²