Geometry and measure Angles, lines and polygons - Edexcel Polygons are multi-sided shapes with different properties. Shapes have symmetrical properties and some can tessellate.

A technician often has to sketch or design ductwork and other parts of an HVAC system. This means working with lines, angles, and other shapes. This article shows you how to draw and work with these ...

KS2 Maths Lines and angles learning resources for adults, children, parents and teachers.

Crows in a lab were able to distinguish shapes that exhibited right angles, parallel lines, and symmetry, suggesting that, like humans, they have a special ability to perceive geometric regularity.