Find the ratio of the curved surface areas of two cones if the diameters of the bases are equal and slant heights are in the ratio 5 : 3.
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Correct answer: A
Explanation
The correct answer is option 1 i.e. 5 : 3.
Diameters equal → radii equal
Slant heights ratio = 5:3
CSA of cone = π × r × l
Since radius is same, CSA ratio = slant height ratio = 5:3