Circles
Circles is on the syllabus of two of the boards whose official documents we hold: CBSE and NIOS. It is set in Mathematics, in Class 9, Class 10 and Class 12. Each board files it under a chapter of its own, and every row below names the document that chapter was read from, the page inside it, and the day we read it.
This page is a map, not a lesson. It says where Circles sits on each board and where that came from. Wobo explains it on the board, out loud, or as a thing you drag, and none of that is on this page yet. Ask below and Wobo answers about this concept now, with no account.
Where it is taught
- CBSE · Class 9 · Mathematics
Circles
Topic, in Geometry
- State the definition of a circle
- Explain the meanings of the terms ‘chord’, ‘diameter’, ‘radius’, ‘arc’, ‘segment’, and ‘sector’
- Explain why there exists a unique circle through three non-collinear points
- CBSE · Class 10 · Mathematics
Circles
Topic, in Geometry
- Derives proofs of theorems related to the tangents of circles
- NIOS · Class 12 · Mathematics
Circles
Topic, in Co-ordinate Geometry
Bifurcation of syllabus, Mathematics (311), NIOS senior secondary coursepage 1, Module IV: Co-ordinate Geometry
Where this came from
Three official documents, each read in full, hashed, and named here so you can check them yourself.
- Mathematics, Class IX, Secondary Curriculum Part 1, 2026-27Central Board of Secondary EducationRead on 3 September 2026.Hash of the bytes we read: 932ea66d6fbf.
- Mathematics, Class X, Secondary Curriculum Part 1, 2026-27Central Board of Secondary EducationRead on 3 September 2026.Hash of the bytes we read: d773e7c12b99.
- Bifurcation of syllabus, Mathematics (311), NIOS senior secondary courseNational Institute of Open SchoolingRead on 3 September 2026.Hash of the bytes we read: 927795176733.