Answer:
373.99 sq cm
Explanation:
formula for surface area of cone is: πr(r+s) where r is radius and s is slant height.
π*7(7+10) = π*7(17) = π*119 = 3.14*119 = 373.99 sq cm
A≈422.37
You use the equation A=πr(r+h2+r2) to find the surface area of a cone
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