Question
A cone has a radius of 6 cm and a slant height of 10 cm.
What is the approximately surface area of the cone?Solution
Surface area of a cone = Οr(l + r), where r is the radius and l is the slant height. Substituting the values: Surface area = Ο Γ 6 Γ (10 + 6) = Ο Γ 6 Γ 16 = 96Ο cmΒ² β 301 cmΒ².
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