When a pair of parallel lines meet an intersecting transversal, pairs of angles with particular properties are made.

Learn about the types of angles that are formed by intersecting and parallel lines with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

→ Pairs of Angles → Different Angles formed Transversal of Parallel Lines → Lines Parallel to the Same Line → Angle Sum Property of a Triangle A screenshot of the NCERT Class 9 Maths ...

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.