The surface area of a cone is given by the formula:
A = πr(r + √(r^2 + h^2))
where r is the radius and h is the height.
Substituting the given values:
A = 3.14 * 6(6 + √(6^2 + 11^2))
= 3.14 * 6(6 + √(36 + 121))
= 3.14 * 6(6 + √(157))
= 3.14 * 6(6 + 12.53)
= 3.14 * 6(18.53)
= 3.14 * 111.18
= 348.4432
Therefore, the surface area of the cone is approximately 348.4432 square inches.
Find the surface area of the cone. Use 3.14 for pi. The radius is 6in and the height is 11in
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