Feature/surface area pyramid

[MarkusRoyikTurner]

• 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 code is formatted with clang-format -i --style=file path/to/your/file.java

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 77.96%. Comparing base (8930369) to head (4d34876).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
src/main/java/com/thealgorithms/maths/Area.java	0.00%	7 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #6895      +/-   ##
============================================
- Coverage     78.00%   77.96%   -0.04%     
  Complexity     6444     6444              
============================================
  Files           737      737              
  Lines         21519    21526       +7     
  Branches       4208     4209       +1     
============================================
- Hits          16785    16783       -2     
- Misses         4062     4070       +8     
- Partials        672      673       +1     

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[MarkusRoyikTurner]

Overall, the implementation looks clean and professional.
I appreciate how clear the method structure is and the added comments explaining each step of the calculation.

Specific Feedback:

• Good use of parameter validation for side and slant. Preventing invalid values ensures the geometry stays logical.
• The variable names (base, lateral, totalArea) make the formula easy to follow and self-documenting.
• Suggest renaming slant → slantHeight for extra clarity since it describes a physical dimension.
• You could add a brief comment near the lateral calculation line to remind readers that the factor of 2 comes from the 4 triangular faces (each = side × slant / 2).

Summary:
Clear, consistent, and well-commented update — the code is mathematically correct and formatted neatly. Great improvement from the initial version!

[MarkusRoyikTurner]

Good validation step. It’s always smart to prevent invalid geometric dimensions early.

[MarkusRoyikTurner]

Base area calculation is correct and easy to follow. Consider adding a quick comment that this represents the square base.