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Total surface area of a Hemisphere
TSA = 3πr²
Where: TSA = Total 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: TSA_ (Total surface area)
- Formula: TSA = 3·π·r²
- Substitute the values: TSA = 3·π·7²
- Result: TSA = 461.81412
Answer: TSA_ = 461.81412
Calculator
How to calculate Total surface area of a Hemisphere
- Write down the formula: TSA = 3πr².
- Note the known values (r).
- Substitute them and simplify to find TSA_.
- Use the calculator above to solve for any letter.
Frequently asked questions
What is the formula for Total surface area of a Hemisphere?
The formula is TSA = 3πr², where TSA = Total surface area, r = radius.
What is Total surface area of a Hemisphere when r = 7?
TSA_ = 461.81412. Substitute the values into TSA = 3πr² and simplify.