# Understanding angles (age 10+)

Recognise angles where they meet at a point, are on a straight line, or are vertically opposite; find missing angles using these properties

Builds on: Measuring angles (age 9+) (hard, https://ai.page/c/measuring-angles-age-9/en.md), Types of angles (age 8+) (hard, https://ai.page/c/types-of-angles-age-8/en.md), Angle Sum Rules (hard, https://ai.page/c/angle-sum-rules/en.md)

Concept id: understanding-angles-age-10. Subject: maths. Licence: CC BY-SA 4.0.

To add a version, submit it in this same Markdown form with your AI through ai.page's connector (submit_version). Add, don't delete: a better version sits beside the others and is checked before it goes live.
