Learn about and revise angles, lines and multi-sided shapes and their properties with this BBC Bitesize GCSE Maths Edexcel study guide.

In fact, only one out of five individuals can accurately count all of the hidden triangles. So if you believe you're among ...

A new brain teaser has been released by Twist Museum, which invites the public to solve a deceptively simple question: How many triangles are in this image?

We present a novel architecture for arm movement classification based on kinematic properties (joint angle and position), computed from MARG sensors, using a quaternion-based gradient-descent method ...