Edexcel IGCSE Maths 復習筆記 4.6.4 Circle Theorems - Alternate Segment
Edexcel IGCSE Maths 復習筆記 4.6.4 Circle Theorems - Alternate Segment
What you need to know
- Alternate Segment Theorem
- The Alternate Segment Theorem states that the angle between a chord and a tangent is equal to the angle in the alternate segment
- You can spot this circle theorem by looking for a “cyclic triangle”
ie. all 3 vertices lie on the circumference) but one vertex lies on a tangent – look for where 2 chords meet a tangent
Exam Tip
Questions often ask for “reasons” – aim to quote an angle fact or circle theorem for?every?angle you find, not just one for the final answer.
Worked Example
Worked Example
轉載自savemyexam
以上就是關于【Edexcel IGCSE Maths 復習筆記 4.6.4 Circle Theorems - Alternate Segment】的解答，如需了解學校/賽事/課程動態，可至翰林教育官網獲取更多信息。
往期文章閱讀推薦：
深耕九載！30+國際競賽/課程講義，碩博100%團隊操刀，助力爬藤沖G5！
翰林AMC8視頻課重磅上線！
國際競賽真題資源免費領取
