Q.The curved surface area of a right circular cylinder is 440 square centimeters. If the height of the cylinder is 10 centimeters, find its volume.

Let the radius of the cylinder be \(r\) cm. According to the question, \(2\pi r \times 10 = 440\) ⇒ \(2 \times \frac{22}{7} \times 10 \times r = 440\) ⇒ \(r = \frac{440 \times 7}{2 \times 22 \times 10} = 7\) ∴ The radius of the cylinder is 7 cm. ∴ Volume of the cylinder = \(\pi \times 7^2 \times 10\) cubic cm = \(\frac{22}{7} \times 49 \times 10\) cubic cm = 1540 cubic cm ∴ The volume of the cylinder is 1540 cubic centimeters.
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