A cylindrical roller rolls over a square field. It takes 400 rounds to

1.	A cylindrical roller rolls over a square field. It takes 400 rounds to cover the complete field. If the radius of the cylindrical roller is 0.7 meter and length is 8.4 m then find out the side of square (approximately). Take π = 22/71). 135 m2). 145 m3). 122 m4). 150 m
Answer» Area covered by the cylinder in TOTAL, ⇒ 2 × π × 0.7 × 8.4 × 400 ⇒ 14784 m² ∴ Area of the square field = 14784 m² ∴ SIDE of the square ⇒ √14784 = 121.59 m ⇒ 121.59 m ≈ 122 m

A cylindrical roller rolls over a square field. It takes 400 rounds to cover the complete field. If the radius of the cylindrical roller is 0.7 meter and length is 8.4 m then find out the side of square (approximately). Take π = 22/71). 135 m2). 145 m3). 122 m4). 150 m

Answer»

Area covered by the cylinder in TOTAL,

⇒ 2 × π × 0.7 × 8.4 × 400

⇒ 14784 m²

∴ Area of the square field = 14784 m²

∴ SIDE of the square

⇒ √14784 = 121.59 m

⇒ 121.59 m ≈ 122 m

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A cylindrical roller rolls over a square field. It takes 400 rounds to cover the complete field. If the radius of the cylindrical roller is 0.7 meter and length is 8.4 m then find out the side of square (approximately). Take π = 22/71). 135 m2). 145 m3). 122 m4). 150 m

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