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Curved surface area of a Hemisphere
CSA = 2πr²
Where: CSA = Curved surface area, r = radius
Use the same units for all lengths (e.g. all in cm); areas come out in cm², volumes in cm³.
Solved example
Given: r = 7
Find: CSA_ (Curved surface area)
- Formula: CSA = 2·π·r²
- Substitute the values: CSA = 2·π·7²
- Result: CSA = 307.87608
Answer: CSA_ = 307.87608
Calculator
How to calculate Curved surface area of a Hemisphere
- Write down the formula: CSA = 2πr².
- Note the known values (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 Hemisphere?
The formula is CSA = 2πr², where CSA = Curved surface area, r = radius.
What is Curved surface area of a Hemisphere when r = 7?
CSA_ = 307.87608. Substitute the values into CSA = 2πr² and simplify.