Isometric Projection — Syllabus
CBSE · Class 12 · Engineering Graphics
What Isometric Projection covers in CBSE Class 12 Engineering Graphics: 4 topics, for the 2026-27 session. Topics include Fundamentals of Isometric.
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Fundamentals of Isometric Projection
- Isometric projection shows 3D objects on 2D paper with all three axes equally inclined at 120°
- All three principal axes use the same foreshortened scale (isometric scale)
- No vanishing points are used, unlike perspective projection
Drawing Regular Solids
- All regular solids follow the box method construction technique
- Start with helping figure (base shape) using isometric scale
- Create enclosing box using principal axes
Prisms and Pyramids
- Prisms: Two parallel bases with rectangular faces
- Can be positioned vertically (on base) or horizontally (on face)
- Pyramids: Single base with triangular faces meeting at apex
Cylinders, Cones, and Circular Solids
- Circular bases drawn as ellipses using four-center method
- Cylinders: Two parallel circular bases with curved surface
- Cones: Single circular base tapering to apex
Key Concepts
Central concept: Isometric Projection
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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