Q:
Find the total surface area of a cone of slant height 9 metres and the diameter of the base is 12 m-
Answers
Answered by
1
Slant Height = 9m
Base = 12/2 = 6m
Total surface area of a cone = πr (r+l)
= 22/7×6 (6+9)
= 132×15 / 7
= 1980 / 7
= 282.85
Total surface area of cone =282.85m
Answered by
3
Step-by-step explanation:
282 is the answer for your question
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