Question

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the radius of the base of a cone is 22 m. its slant height is 10 m. find the surface area in terms of π.
π m²

Explanation:

Step1: Recall total surface area formula

Total surface area of cone = πr(r + l)

Step2: Substitute values (r=22, l=10)

π×22×(22 + 10) = π×22×32 = 660π

Answer:

660π m²