Module 4 · Geometry
Chapter 45: Polygons
Geometry
3 topics
What this chapter covers
The 3 topics below make up Polygons on the CAT. Work through them in order — each one builds toward the SAT-style questions in this chapter's bank.
1Interior & Exterior Angles
2Regular Polygons
3Diagonals
Study material & tests
📚 Concept notes
Worked explanations & SAT examples for every topic above.
Coming soon
🎯 Topic practice
SAT-style questions by topic, with full solutions.
Coming soon
📝 Chapter test
Timed, mixed-difficulty test with instant analysis.
Coming soon
Formula Reference Sheet
CAT reference
🖩 Graphing Calculator