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Class 9 Maths Chapter 13 Surface Areas And Volumes Quiz 1 (4 MCQs)

Quiz Instructions

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1. 12 solid spheres of the same size are made by melting a solid metallic cylinder of base diameter 2 cm and height 16 cm. The diameter of each sphere is

Correct Answer: C) 2 cm.

2. When finding Surface Area which type of units could be on the end of your answer?

Correct Answer: B) Cm$^{2}$.

3. A metallic spherical shell of internal and external diameters 4 cm and 8 cm, respectively is melted and recast into the form a cone of base diameter 8cm. The height of the cone is

Correct Answer: B) 14 cm.

4. A cylinder and a cone are of same base radius and height. The ratio of the volume of the cylinder to that of the cone is

Correct Answer: A) 3:1.

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