Understanding different types of angles and that angles in a triangle sum to 180° can be helpful when classifying a triangle. Recognising line symmetry and rotational symmetry will also help. Look for ...

Dive into one of the most wicked geometry problems and see it explained step by step in a clear, intuitive way. This lesson ...

Mathematician Katie Steckles explains just why the proliferation of snowflake decorations this time of year is deeply ...

Abstract: Pixel-based pixel-value-ordering (PPVO) has been demonstrated to be an outstanding algorithm for reversible data hiding on digital images. High-fidelity marked images were generated from an ...

It’s no secret that many of us are not too fond of mathematics and geometry, and that it is often too complex. But even so, it can be pretty mind-blowing to look back in history and discover the ...