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Surface Area Notes

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Published in: Mathematics
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You will learn surface area notes

Faisal A / Abu Dhabi

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Qualification: BSc in Electrical and Electronics Engineering

Teaches: Photography, English, Science, Maths

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  1. 1. 2. 3. 4. 5. 6. 7. 8. • • Key Notes Chapter 13 Surface Areas and Volumes Surface Area of a Cuboid and a Cube Surface Area of a Right Circular Cylinder Surface Area of a Right Circular Cone Surface Area of a Sphere Volume of a Cuboid Volume of a Cylinder Volume of a Right Circular Cone Volume of a Sphere Polyhedrons Shapes: Cube: Cube whose edge = a Diagonal of Cube = c a Lateral Surface Area of Cube = 4a Total Surface Area of Cube = 6a2 Volume of Cube = a Cuboid: Cuboid whose length = l, breadth = b and height = h 12 + b2 +112 Diagonal of Cuboid = Lateral Surface Area of Cuboid = 2(1 + b) h Total Surface Area of Cuboid = 2 (1b + bh + h/) Volume of Cuboid = Ibh Non-polyhedrons: (i) Cylinder: Cylinder whose radius = r, height = h Curved Surface Area of Cylinder = 2zrh Total Surface Area of Cylinder = 2Ærh(r + h)
  2. Key Notes (iii) (iv) Volume of Cylinder = nr2h Cone: Cone having height = h, radius = r and slant height = I Slant height of Cone (l) = Curved Surface Area of Cone = Trl Total Surface Area of Cone = .rr(r +1) Volume of Cone = —ltr2h 3 Sphere: Sphere whose radius = r Surface Area of a Sphere = 4zr Volume of Sphere = 3 Hemisphere: Hemisphere whose radius = r Curved Surface Area of Hemisphere = 2m- Total Surface Area of Hemisphere = 3nr2 2 Volume of Hemisphere = 3