A geometry problem over a century old has just found its definitive answer. Mathematicians have confirmed that the solution ...

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

Mark the 90° right angles in the bottom left and top right corners. You can split a rectangle into 2 right-angled triangles. Image caption, STEP 2: Use the compass to draw a circle. Put a dot ...

Mathematicians have finally solved a geometry problem that has puzzled the field for decades. The question was proposed by ...

It's possible to demonstrate and prove mathematically that the angle sum of every triangle is 180 degrees. The techniques used are useful for solving all kinds of other geometry problems too.