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10. In Fig. 13.12, you see the frame of a lampshade. It is to becovered with a decorative cloth. The frame has a basediameter of 20 cm and height of 30 cm. A margin of 2.5 cmis to be given for folding it over the top and bottom of theframe. Find how much cloth is required for covering thelampshade.Fig. 13.12 |
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Answer» Step-by-step explanation: Given, FRAME-- DIAMETER= 20 CM Height= 30 cm ∴ CLOTH required= πdh = π*20*{30- (2.5+2.5)} = 3.14*20*25 [∵π=3.14] = 3.14*500 = 1570 cm ∴ Total cloth required for covering the lampshade= 1570 cm= 1.57 m Hope it helps!! :) |
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