polygons

Since ancient times, mathematicians labored for years of their lives to advance pi just a handful of decimal places. Even computers able to calculate pi to trillions of decimal places have yet to reveal pi's secrets, or find its limits.

This book explores regular pyramids which have congruent triangles for sides.

Identifies various kinds of polygons and uses activities, puzzles, and games to explore these shapes.

Explains what shapes are, and provides an illustrated introduction to polygons--shapes that have many sides and are made of straight line segments.

Discusses how to measure the perimeters of various types of playing fields, such as football and soccer, by using addition and multiplication.

Colorful illustrations and simple text introduce different objects that are polygons.