CBSE Class 10 Maths (Standard) 2018 · Paper 30/3/1 · Question 24
The diameters of the lower and upper ends of a bucket in the form of a frustum of a cone are cm and cm respectively. If its height is 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 ]
- iThe area of the metal sheet used to make the bucket.
- iiWhy we should avoid the bucket made by ordinary plastic ?
Answer
(i) Metal sheet area cm. (ii) Ordinary plastic is non-biodegradable and pollutes the environment, so such buckets should be avoided.
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