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Curved surface area of a cone is 308 cm and its slant height is 14 cm. Find
(1) radius of the base and (ii) total surface area of the cone.
end
hinh
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टेक आउट ए रेडियस 10 अंग्रेजी सबवे सर्फर्स टेक आउट द इंडियन टोटल सर्फेस एरिया आईएस टू प्लस टू बोथ
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(i) πrl= 308cm
22/7*r*14=308cm
r=7cm
(ii) total surface area of the cone= πr(l+r)
=22/7*7*(14+7)
=462 centimetre square
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