📐 Surface Area Calculator
🌟 About This Tool
Professional-grade surface area calculator for 3D rectangular objects. Perfect for engineering, architecture, and education.
🚀 How to Use
1. Enter dimensions in input fields
2. Click Calculate button
3. View instant results
4. Reset for new calculations
💎 Key Features
• Military-grade precision
• Cross-device compatibility
• Real-time calculations
• Error-proof design
