Test your knowledge of taxicab geometry, triangular numbers, the golden ratio and more.

So we're going to take a look at non-Euclidean geometry, or the geometry that deals with 3D surfaces such as spheres or saddle shapes. That's where things like triangles start to get weird. Take a ...

How Trigonometry Shapes the World,” Matt Parker recounts, for instance, how computers were a “game-changer in the field of ...

Look around, you see angles everywhere in nature and the built world. The wake behind a duck in a pond is always 39 degrees, ...

Likewise, for the third side of the triangle, there are four lines left to choose from. Thus, the total number of ways you can choose the sides of the triangle equals 6 × 5 × 4, or 120. Clearly ...

Yet another viral math equation is taking over the internet. This time, it's a pink triangle within a square that has people scratching their heads. Can you solve it?

On the video, the rapper known as 2 Pi reels off rhymes as teenagers in classrooms and hallways sway and bop to the music. It's upbeat. It's catchy. It's . . . math. We solve triangles one by one ...

Math Riddles: Today, we have another math puzzle to test your aptitude and IQ level.Can you find the total number of triangles in this picture puzzle which is designed to strengthen your logical ...