To calculate the area of a composite shape you must divide the shape into rectangles, triangles or other shapes you can find the area of and then add the areas back together. You may have to ...

Area is the amount of space taken up by a flat shape and is calculated by counting the square units inside it; almost like the tiles on a floor. For example, if we can repeatedly fit a square with ...

A 125-page proof posted to arXiv may represent a huge breakthrough in geometric measure theory. This problem has implications ...