The curved surface area of a cone is 306 cm² and its slant height is 14 cm. Find:
(i)the radius of the base
(ii) total surface area of the cone
Answers
Answered by
1
Step-by-step explanation:
curved surface area of cone=306cm²
slant height=14cm
curved surface area=πrl
22/7*14*r=306cm²
44r=306
r=306/44
r=76.5cm
total surface area=πr(l+r)
22/7*765/10(14+765/10)
11/7*153(90.5)
11/7*153*90.5
Similar questions