Class 9 Maths · Chapter 14 · CBSE / NCERT
Math of Space: Surface Area and Volume
Surface area and volume of solids. You’ll learn the formulas for cuboids, cubes, cylinders, cones, pyramids, spheres and hemispheres, and where they come from.
10 short lessons · about 40 minutes in all
What you’ll learn
- 1Space inside a box, and wrapping it4 min
- 2Cubes and cube numbers4 min
- 3Same space, different wrapping4 min
- 4Wrapping a tin4 min
- 5Stacking circles4 min
- 6The slanted side of a cone4 min
- 7Why one third?4 min
- 8The skin of a ball4 min
- 9Half a ball4 min
- 10How many balls fit?4 min
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Space inside a box, and wrapping it · about 4 minutes
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More Class 9 Maths
The other 13 chapters.
CH 1Orienting Yourself: The Use of Coordinates8 lessonsCH 2Introduction to Linear Polynomials9 lessonsCH 3The World of Numbers10 lessonsCH 4Exploring Algebraic Identities9 lessonsCH 5I’m Up and Down, and Round and Round10 lessonsCH 6Measuring Space: Perimeter and Area10 lessonsCH 7The Mathematics of Maybe: Introduction to Probability9 lessonsCH 8Predicting What Comes Next: Exploring Sequences and Progressions9 lessonsCH 9Propositions and their Converses12 lessonsCH 10How Quantities Combine: Understanding Data10 lessonsCH 11The World of Algorithms10 lessonsCH 12Quadrilaterals11 lessonsCH 13Two Variables, One Line12 lessons
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