CBSE Class 10 Maths (Basic) 2023 · Paper 430/5/1 · Question 37
Singing bowls (hemispherical in shape) are commonly used in sound healing practices. Mallet (cylindrical in shape) is used to strike the bowl in a sequence to produce sound and vibration. One such bowl is shown here whose dimensions are : Hemispherical bowl has outer radius 6 cm and inner radius 5 cm. Mallet has height of 10 cm and radius 2 cm. Based on the above, answer the following questions :
- (i)What is the volume of the material used in making the mallet ?[1]
- (ii)The bowl is to be polished from inside. Find the inner surface area of the bowl.[1]
- (iii)(a)Find the volume of metal used to make the bowl.[2]
- (iii)(b) ORFind total surface area of the mallet. [2]
Answer
(i) cm; (ii) cm; (iii)(a) cm; (iii)(b) cm.
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