Chapter 16 of 16
Syllabus
Surface Area and Volume — Syllabus
Maharashtra Board · Class 9 · Mathematics
What Surface Area and Volume covers in Maharashtra Board Class 9 Mathematics: 4 topics, for the 2026-27 session.
45 questions20 flashcards9 formulas & key relations5 concepts
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4 Topics · Maharashtra Board Class 9 Mathematics · 2026-27
Topics in Surface Area and Volume
1
Recall: Basic 3D Shapes
- Cuboid: Has 6 rectangular faces with length (l), breadth (b), and height (h)
- Cube: Special cuboid where all edges are equal (l = b = h)
- Cylinder: Has circular bases with radius (r) and height (h)
2
Cone - Structure and Relationships
- A cone has a circular base and a curved surface meeting at vertex (apex)
- Important elements: base radius (r), perpendicular height (h), slant height (l)
- Relationship between dimensions: l² = h² + r² (Pythagoras theorem)
3
Surface Area of Cone
- Cone has two surfaces: circular base and curved surface
- Curved surface area derived from sector area = πrl
- Total surface area includes both base and curved surface
4
Volume of Cone
- Volume relationship: 3 × Volume of cone = Volume of cylinder (same base, same height)
- Uses perpendicular height, not slant height
- Formula derived through practical activity with sand
Key Concepts
A cone has a circular baseA cone has two surfacesVolume of cone = (1/3) ×Surface area of sphere = 4πr²Volume of sphere = (4/3)πr³
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Start This ChapterFrequently Asked Questions
What are the important topics in Surface Area and Volume for Maharashtra Board Class 9 Mathematics?
Key topics in Surface Area and Volume include Recall: Basic 3D Shapes, Cone - Structure and Relationships, Surface Area of Cone, Volume of Cone. Study these first, then practise questions on each for Class 9 exams.
How should I revise Surface Area and Volume for Class 9 exams?
Learn the core ideas first, then work through the 45 practice questions on Surface Area and Volume. Revise definitions regularly and use flashcards for quick recall before the exam.
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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