The figure shows the cracker and the circle formed by the sparkles of the cracker. Find the area of the ground it covered if the sparkle formed 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 length of the sparkle is the radius.

So area of ground covered by the cracker = $(\frac{22}{7})$ × 28 × 28 = 2464 cm²

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The figure shows the cracker and the circle formed by the sparkles of the cracker. Find the area of the ground it covered if the sparkle formed 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 length of the sparkle is the radius. So area of ground covered by the cracker = (227) × 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 length of the sparkle is the radius.

So area of ground covered by the cracker = $(\frac{22}{7})$ × 28 × 28 = 2464 cm²