Find the total surface area of a cone if slant height is 21m and diameter of its base is 24 m
Answers
Answered by
18
hey I'm here with your answer:-
Total surface area of a cone
= πr(r+l)
= π(12)(12+21)
= 12π(33)
= 396π
= 396(3.14)
= 1243.44
Hence, the answer is 1243.44m²
Answered by
5
Answer:
L=21m
R=12m
TSA=πrl
TSA=22/7×21×12=22×3×12=792 m²
TSA of cone=792m²
Follow me
Mark as brainiest answer to get points
Similar questions