Question

What is the Total surface area of a Cone?​

Answer 1

Answer:

Total surface area of cone = πr2 + πrl = πr (r + l).

Step-by-step explanation:

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Answer 2

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).
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