📐 Rectangle Area Calculator
Calculate area, perimeter, and diagonal
Formula
Area
Area = Length × Width
Example: 10 ft × 6 ft = 60 sq ft
Perimeter
Perimeter = 2(Length + Width)
Example: 2(10 + 6) = 2(16) = 32 ft
Diagonal
Diagonal = √(Length² + Width²)
Example: √(10² + 6²) = √136 ≈ 11.66 ft