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NCERT Class 9 Mathematics Chapter 11 Surface areas and Volumes
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Chapter 11 Surface areas and Volumes NCERT Book Class 9 PDF (2026-27)
• Cuboid whose length = l, breadth = b and height = h
(a) Volume of cuboid = lbh
(b) Total surface area of cuboid = 2 ( lb + bh + hl )
(c) Lateral surface area of cuboid = 2 h (l + b)
(d) Diagonal of cuboid =√ l2 +b2 + h2
• Cube whose edge = a
(a) Volume of cube = a3
(b) Lateral Surface area = 4a2
(c) Total surface area of cube = 6a2
(d) Diagonal of cube = a 3
• Cylinder whose radius = r, height = h
(a) Volume of cylinder = πr2h
(b) Curved surface area of cylinder = 2πrh
(c) Total surface area of cylinder = 2πr (r + h)
• Cone having height = h, radius = r and slant height = l
(a) Volume of cone = 1/3πr2h
(b) Curved surface area of cone = πrl
Please refer to attached file for NCERT Class 9 Maths Surface Areas And Volumes Questions
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Official NCERT Textbook PDF: Class 9 Mathematics Chapter 11 Surface areas and Volumes
NCERT Book Class 9 Mathematics Chapter 11 Surface areas and Volumes
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