the slant height of a cone is 1244.57m^2 and the diameter of its base is 24m find height of a cone
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Step-by-step explanation:
It is given that Diameter of the cone = 24m
Radius of the cone = 24/2 = 12m
Slant height of the cone = 21m
We know that
Total surface area of a cone = πr (l + r)
By substituting the values
Total surface area of a cone = (22/7) × 12 (21+12) On
On further calculation
Total surface area of a cone = (22/7) × 12 × 33
So we get
Total surface area of a cone = 1244.57 m2
Therefore, the total surface area of a cone is 1244.57 m².
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