You can ask Google geometry related questions and it will solve them for you, such as [perimeter of a trapezoid]: As Alex Chitu notes, you can also […] ...

Now recall that the perimeter of the hexagon underestimates the true circumference of the circle. So the ratio of these two hexagonal distances — 6 r /2 r = 3 — must represent an underestimate ...

Geometry is a branch of mathematics concerned with questions of shape, size, relative position of figures, and the properties of space ...

Archimedes started with hexagons. Business Insider/Andy Kiersz We start with a circle of diameter equal to one, so that, by definition, its circumference will equal π. Using some basic geometry ...