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Total surface area of a Cube
TSA = 6a²
Where: TSA = Total surface area, a = edge (side)
Use the same units for all lengths (e.g. all in cm); areas come out in cm², volumes in cm³.
Solved example
Given: a = 7
Find: TSA_ (Total surface area)
- Formula: TSA = 6·a²
- Substitute the values: TSA = 6·7²
- Result: TSA = 294
Answer: TSA_ = 294
Calculator
How to calculate Total surface area of a Cube
- Write down the formula: TSA = 6a².
- Note the known values (a).
- 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 Cube?
The formula is TSA = 6a², where TSA = Total surface area, a = edge (side).
What is Total surface area of a Cube when a = 7?
TSA_ = 294. Substitute the values into TSA = 6a² and simplify.