CBSE Class 10 Answered
The largest possible sphere is curved out of a wooden solid cube of 7 cm find the coast of cloth used at the rate of rs 25 per meter
Asked by deepaksingh262212 | 24 Feb, 2019, 05:52: PM
Expert Answer
Maximum diametre of sphere is 7 cm, hence radius r = 3.5 cm
Surface area = 4πr2 = 4π×3.5×3.5 ≈ 154 cm2
cost of cloth to cover the sphere , assuming Rs.25 per m2 = 25×154×10-4 = Rs. 0.39
Answered by Thiyagarajan K | 24 Feb, 2019, 06:23: PM
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