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Yogita Ingle 4 years, 2 months ago
Given : Curved surface area of the cone = 308 sq cm and Slant height or l = 14 cm.
Curved surface area of the cone = πrl
308 = 22/7*r*14
r= (308*7)/(22*14)
r = 7 cm
Total surface area of the cone = πr(r+l)
= (22/7*7)(7+14)
= 22*21
Total surface area of the cone = 462 sq cm
So, the radius of the base of the cone is 7 cm and the total surface area of the cone is 462 sq cm.
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Sakshi Singh 4 years, 2 months ago
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