# Triangles and Polygons

- Link: https://thecuriosi.com/lessons/aptet-maths-triangles-polygons/
- Published: 2026-11-03T18:29:45+05:30
- Author: MAHENDRA MANCHIKALAPATI

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 2. [APTET Maths: Geometry, Algebra, Data and Methodology](https://thecuriosi.com/courses/aptet-maths-geometry-algebra-methodology/)
 3.  Lesson 2 of 10

Learn the types and properties of triangles, the angle sum and exterior angle properties,
triangle inequality, and the classification and angles of polygons.

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