The regular dodecagon and the blue star inside it both have a side length of 1 unit. What is the area of the star? Show puzzle solution The regular dodecagon with side length 1 above is composed ...

Question from Lee: I was using Google Earth to find a racetrack out in the northwest Valley when I discovered an equilateral triangle visible from the space view service. I thought it was pretty ...

The shortest side of a triangle is opposite the smallest angle. Image caption, All three sides of an equilateral triangle are the same length. The word equilateral means equal lines. Each angle is ...

And by connecting a few more points, you can make an equilateral triangle—one whose sides have equal lengths and whose angles have equal measurements. Notice that each edge of the triangle is ...