Question

Curved Surface Area of cone

Answer 1

Answer:

The curved surface area of the cone can be given by finding the area of the sector by using the formula, Area of the sector (in terms of length of arc) = (arc length × radius)/ 2 = ((2πr) × l)/2 = πrl. ⇒ Total surface area of cone = πr2 + πrl = πr (r + l).

Answer 2

The curved surface area of the cone with slant height and diameter can be found by using the formula S = π(D/2)l, where D is the Diameter and l is the slant height.

Hope that helps!