Flat Geometry. This is the geometry we learned in school. The angles of a triangle add up to 180 degrees, and the area of a circle is πr 2. The simplest example of a flat three-dimensional shape is ...

You can figure out if an object is flat with a simple pencil-and-paper geometry exercise. To ascertain the shape of the universe, scientists did a similar calculation, but at huge scales.

The film explores different geometric shapes, focusing on cylinders, rectangular prisms, and pyramids. It describes the properties of each shape, such as the curved surface of a cylinder, the ...

Your teacher instructs you to make a new flat, two-dimensional shape using all of the construction paper and only straight-line cuts. Using your scissors, you cut the paper into a bunch of pieces.

A new study shows that like humans, crows can recognize geometric regularity, making them the first nonhuman animal known to have this ability. Squares, triangles, circles - these geometric shapes ...