Diagonal of a Rectangle

Introduction to Diagonal of a Rectangle

The diagonal of a rectangle is calculated using the Pythagorean theorem, which states that in a right-angled triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides. In this formula, d represents the diagonal of the rectangle, length is the measurement of one of the longer sides of the rectangle, and width is the measurement of one of the shorter sides.

Parameter usage:

• length = length of the rectangle
• width = width of the rectangle

Example valid values:

• length = 3
• width = 4

Output:

• d = diagonal of the rectangle

Data validation

The length and width should be greater than or equal to 0.

Summary

This calculator uses the Pythagorean theorem to determine the length of the diagonal of a rectangle when the length and width are provided. It returns the diagonal length irrespective of the units used for measurements.