10. In Fig. 13.12, you see the frame of a lampshade. It is to becovere – InterviewSolution

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1.	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 em 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 thelampshadeFig li s
Answer» <p>Here r =(20/2) cm =10cm and h=30 cm +2×2.5cm =35cm</p><p>Cloth required for covering the lampshade.</p><p>=It's curved surface area=2πrh=(2×22/7×10×35)cm square</p><p>=2200cm square.</p>

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