Geometry

Welcome to geometry! Together we're going to learn about a wide variety of 2-dimensional and 3-dimensional shapes. Some of the flat, 2-dimensional shapes will have straight edges - like...

Organic species that contain unpaired electrons are known as free radicals. As you can see here, we draw the unpaired electron as a single dot next to the atom on which it resides. In this lesson, we...

In Autograph shapes can be transformed using Select Mode and the right-click menu. In the classroom you could ask four students to come to the board to add a point each. We are now going to rotate the...

Heres an EASY-level Plane Geometry problem that could appear early on the ACT Math test. Take one minute to try to work it and then I'll go through the solution. The correct answer is C. This...

So far we have seen the geometric construction that allows us to find the square roots of natural numbers but it was a recursive process that is to know the square root of a given natural number it...

Today’s theme is related to a model of yarn hairiness. You know, principally, that on the yarn surface is something, which we call as a hairiness sphere. It is this sphere in which our fibers have...

An octagon is a polygon with 8 sides and 8 angles. Whenever you see an octagon you should STOP ... and think "what a lovely red octagon." The prefix "oct" means...

Over 2000 years ago, around 300 BC, Euclid wrote the book called The Elements. Although Euclid was Greek, he wrote the book in the Egyptian city of Alexandria. I can understand him moving there....

A quadrilateral is a flat shape with four sides. The word "quadrilateral" is a combination of "quad" meaning four, and "lateral" meaning side....

Geometry is the study of shapes and spatial relationships. Although it’s based very firmly on observing real shapes in the real world, it is fundamentally an abstract subject. We look at the world...