A rectangular box has a length of 12 cm, width of 8 cm, and height of 5 cm. What is the length of the diagonal from one corner to the opposite corner?

Mon, 04 May 2026 11:11:43 +0000

**Calculate the Diagonal of a Rectangular Box: Precision in Every Measure** If you’ve ever packed a delicate item in a sturdy cardboard box, you’ve likely wondered: How do you find the length of the diagonal—from one corner defying 2D edges to the opposite corner deep inside the box? For a rectangular box measuring 12 cm in length, 8 cm in width, and 5 cm in height, geometry offers a clear way to calculate this diagonal. It’s not just a math problem—it’s a practical tool used in shipping, design, and everyday problem-solving. Understanding the diagonal of a rectangular box reveals more than just dimensions—it links space, function, and real-world application. People frequently explore this calculation when planning storage, shipping logistics, or craft projects where precise fitting matters. The diagonal represents the shortest path diagonally across three-dimensional space, making it essential for ensuring objects move, stack, or fit without compromise. ### Why the Box Diagonal Is Gaining Attention in the US