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Curved surface area of a Right Circular Cone
CSA = πrl
Where: CSA = Curved surface area, l = slant height, r = radius of the base
Use the same units for all lengths (e.g. all in cm); areas come out in cm², volumes in cm³.
Solved example
Given: l = 7, r = 5
Find: CSA_ (Curved surface area)
- Formula: CSA = π·l·r
- Substitute the values: CSA = π·5·7
- Result: CSA = 109.955743
Answer: CSA_ = 109.955743
Calculator
How to calculate Curved surface area of a Right Circular Cone
- Write down the formula: CSA = πrl.
- Note the known values (l, r).
- Substitute them and simplify to find CSA_.
- Use the calculator above to solve for any letter.
Frequently asked questions
What is the formula for Curved surface area of a Right Circular Cone?
The formula is CSA = πrl, where CSA = Curved surface area, l = slant height, r = radius of the base.
What is Curved surface area of a Right Circular Cone when l = 7, r = 5?
CSA_ = 109.955743. Substitute the values into CSA = πrl and simplify.