In the following question, two statements, (i) and (ii), are given. Choose the valid statement. i. The height and radius of a cylinder are 12 cm and 5 cm respectively. Its volume will be 300 $\pi$ cm3. ii. Volume of sphere is $\frac{4}{3}$$\pi$r^3.

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Both (i) and (ii) Explanation: • Statement (i) is valid because the volume of the cylinder is $\pi$r2h = $\pi$ $\times$ 52 $\times$ 12 = 300 $\pi$ cm3. • Statement (ii) is also valid as $\frac{4}{3}$$\pi$r^3 is the correct standard formula for the volume of a sphere.

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