Geometry Math

Join us as we go on a journey into the world of symmetry! Learn about the wonders of line symmetry—or reflection—as you create mirror images and watch how rotational symmetry works in this brief peek into this area of geometry.

Why the familiar equal sign isn’t just a marker of sameness but a gateway into math’s—and humanity’s—most profound questions Math is famous for its equations: 1 + 1 = 2, a2 + b2 = c2, or y = mx + b. Much of the time it can seem like that’s all mathematics is: following steps to show...

AN INSTANT NEW YORK TIMES BESTSELLER! An ode to triangles, the shape that makes our lives possible Trigonometry is perhaps the most essential concept humans have ever devised. The simple yet versatile triangle allows us to record music, map the world, launch rockets into space, and be...

Have you ever wondered about all the shapes it takes to design and build structures like buildings or bridges? Different shapes like squares, triangle and rectangles are used in construction, but which shape forms the strongest? Follow the activity using straws and string to find out which shape is the strongest, sturdiest construction?

No number has captured the attention and imagination of people throughout the ages as much as the ratio of a circle's circumference to its diameter. Pi—or ? as it is symbolically known—is infinite and, in The Joy of pi, it proves to be infinitely intriguing. With incisive historical insight...

Have you ever wondered how to measure your pizza, or how much ice cream is in your ice-cream cone? Basic principles of geometry, including measuring two-dimensional and three-dimensional shapes, attributes of various shapes, and formulas for finding area and volume, are explored through informative and engaging text in this newest addition to the How Do series.