Diagonal of a Rectangle Calculator

Calculate the diagonal of a rectangle using the Pythagorean theorem with MaiCalcs. Enter length and width to get the diagonal, area, and perimeter with step-by-step solutions.

Rectangle Dimensions
Length
Width
Diagonal

Rectangle Diagonal Formula:

• Diagonal = √(Length² + Width²)

• Based on Pythagorean theorem

• d² = l² + w²

Example:

• Rectangle: Length = 8, Width = 6

• Diagonal = √(8² + 6²) = √(64 + 36) = √100 = 10 units

Rectangle Properties

Enter length and width to calculate the diagonal

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