Question

Answer Answer answer with explanation ​

Answer 1

Answer:

CSA of cone = πrl

l² = h² + r²

l = √ h²+r²

so CSAof cone become πr√h²+r²

so option C us correct

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. ∴ The curved surface area of a cone, S = πrl units2.

Step-by-step explanation:

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