Rectangle Diagonal Calculator | How to Find Rectangle Diagonal

Diagonal in geometry, a line segment connecting two non-adjacent vertices of a polygon or polyhedron. The diagonal of a polygon is a line segment connecting its two vertices that do not lie on one side.

Rectangle — is a quadrangle in which all angles are straight (equal to 90 degrees). In Euclidean geometry, for a quadrilateral to be a rectangle, it is enough that at least three of its angles are straight, then the fourth angle, by the theorem on the sum of the angles of a polygon, will also be 90 °.

Are you trying to find the diagonal of a rectangle but don't want to go through the hassle of calculating it manually? Look no further than our Rectangle Diagonal Calculator! This free tool can help you quickly and easily find the diagonal of a rectangle.

Rectangle Diagonal Formula

The diagonal of a rectangle divides the rectangle into two equal parts, each of which is a right triangle, the legs of which are the sides of the rectangle. The formula is:

d = \sqrt{a^2 + b^2}

Where: d is the diagonal length of the rectangle, a and b are the width and length of the rectangle respectively.

Step-by-Step Process: How to Find Rectangle Diagonal

1. Measure the width, and length of the rectangle.
2. Plug in the values into the formula to calculate the diagonal of the rectangle.
3. Alternatively, you can use our calculator to get an instant result.

With our calculator and step-by-step guide, you can easily find the diagonal of a rectangle. Whether you are a student, teacher, or professional, our free tool can save you time and effort.