[Jkhaleed]

• I have read CONTRIBUTING.md.
• This pull request is all my own work -- I have not plagiarized it.
• All filenames are in PascalCase.
• All functions and variable names follow Java naming conventions.
• All new algorithms have a URL in their comments that points to Wikipedia or other similar explanations.
• All new algorithms include a corresponding test class that validates their functionality.
• All new code is formatted with clang-format -i --style=file path/to/your/file.java

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.25%. Comparing base (2319794) to head (f65bda3).

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #7686      +/-   ##
============================================
+ Coverage     82.22%   82.25%   +0.02%     
- Complexity     8403     8407       +4     
============================================
  Files           843      843              
  Lines         26141    26141              
  Branches       5100     5100              
============================================
+ Hits          21495    21502       +7     
+ Misses         3854     3847       -7     
  Partials        792      792              

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[Jkhaleed]

The test correctly checks the expected surface area for a valid square pyramid. Could we also add a test using a negative side length to verify the input validation handles all non-positive values?