Skip to content
Geometry Fundamentals · Semester 1

Properties of Polygons: Sum of Interior Angles

Students will derive and apply the formula for the sum of interior angles of any polygon, and calculate individual interior/exterior angles of regular polygons.

Key Questions

  1. Explain how to derive the formula for the sum of interior angles of an n-sided polygon.
  2. Differentiate between interior and exterior angles of a polygon and their relationship.
  3. Construct a regular polygon and calculate its interior and exterior angles.

MOE Syllabus Outcomes

MOE: Geometry and Measurement - S1
Level: Primary 4
Subject: Mathematics
Unit: Geometry Fundamentals
Period: Semester 1

Ready to teach this topic?

Generate a complete, classroom-ready active learning mission in seconds.

Browse curriculum by country

AmericasUSCAMXCLCOBR
Asia & PacificINSGAU