CBSE Class 10 Maths (Standard) 2018 · Paper 30/2/1 · Question 28
The diameters of the lower and upper ends of a bucket in the form of a frustum of a cone are 10 cm and 30 cm respectively. If its height is 24 cm, find:
- (i)The area of the metal sheet used to make the bucket.
- (ii)Why we should avoid the bucket made by ordinary plastic? [Use ]
- (i)The area of the metal sheet used to make the bucket.
- (ii)Why we should avoid the bucket made by ordinary plastic?
Answer
(i) The area of the metal sheet is cm². (ii) Ordinary plastic is non-biodegradable and pollutes the environment, so such buckets should be avoided in favour of eco-friendly materials.
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