Surface area of a frustum

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Q. If the radii of the ends of a bucket, 45 cm high, are 28 cm and 7 cm respectively, then the total surface area of the bucket is:

1. 6074 $c{m}^2$
2. 7074 $c{m}^2$
3. 8074 $c{m}^2$
4. 8274 $c{m}^2$

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