If you are using a ruler and compass to draw something - for example, a perpendicular bisector ... the height of the triangle is known, trigonometry can be used to find the angle marked x.

If you are using a ruler and compass to draw something - for example, a perpendicular bisector ... the height of the triangle is known, trigonometry can be used to find the angle marked x.

Now, more than 122 years after it was first proposed, Kamata and two other mathematicians have finally proved that a solution ...

Reason: One frame, four geometry options. The Reason uses a Flip Chip system, enabling straightforward changes to the steering and rear triangle angles. Frame geometry changes with the Flip Chip mean ...

In an extraordinary achievement that has stunned the global mathematics community, two high school students from Louisiana ...