Have you met a specific rectangle problem and you don't know how to find the diagonal of a rectangle? Try entering a couple of parameters in the fields beside the text or keep reading to …

The diagonal formula is defined as the formula for diagonals, to find the number of diagonals of different polygons and to find their lengths. The number of diagonal lines of an n-sided …

Jul 23, 2025 · Diagonal Formula is the formula that is used to calculate the length of the diagonal of any polygon. A diagonal is a slant line that joints two alternate sides of any polygon and …

The formula to find the diagonal of a rectangle is d = √ (l² + w²), where l is the length and w is the width of the rectangle. For example, the diagonal of a rectangle of length 6m and width 2m is …

Jan 11, 2023 · This formula works every time to tell you exactly how many diagonals can be constructed inside (or outside) of any simple polygon, whether the shape is convex or concave.

Simple Definition: The diagonal of a rectangle is the line segment that stretches from one corner to the opposite corner, passing through the rectangle’s interior. Both diagonals are equal. …

Use our free diagonal calculator to quickly find the diagonal of a square, rectangle, or parallelogram. Learn diagonal formulas with examples.