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CBSE Class 9 Answered

The inner diameter of a circular well is 3.5 m. It is 10 m deep. Find: (i) Its inner curved surface area (ii) The cost of plastering this curved surface at rate of Rs. 40 per m2
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
answered-by-expert Expert Answer

(i) Inner curved surface area = 2rh

= 110 m2

(ii) Cost of plastering = Rs. 40 110

= Rs. 4400

Answered by | 04 Jun, 2014, 03:23: PM

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