Parallel close parallel Parallel lines are always the same distance apart. They never meet. lines have the same gradient close gradient A measure of the slope of a line.. Higher - Perpendicular ...

This KS2 maths article explains how parallel lines are always the same distance apart and never meet. A perpendicular line is at right angles to another line.

From four-dimensional hexagons to the mind-bending amplituhedron, geometrical shapes are wilder than we learn at school - and ...

Last week in Singapore, Filipino students from public and private elementary and secondary schools in the Philippines beat China and Taiwan in the 2015 Singapore International Math Competition.

The calculated flow geometry consists of flow lines that are parallel to the trench near the shallow dipping slab and trench-perpendicular directly above the shallow dipping slab.