Geometry

Guides, updates and answers about the AMC 8 — registration, the exam, preparation and results.

Oct 13, 2026

AMC 8 Overlapping Areas: Partition Shaded Figures Before Subtracting

Stop double-subtracting shaded regions. Learn to partition overlapping figures into non-overlapping parts for accurate AMC 8 geometry solutions.

AMC 8

Register, prepare and do well at the AMC 8 with an authorized test centre in China. A program of the Mathematical Association of America, administered by ASDAN and the China Organizing Committee.

Explore

About
Competition
Rules
Registration
News

Prepare

Preparation
Past papers
FAQ

Connect

WhatsApp
WeChat
Contact us

Geometry

AMC 8 Overlapping Areas: Partition Shaded Figures Before Subtracting