Class 9 Maths · Chapter 1 · CBSE / NCERT
Orienting Yourself: The Use of Coordinates
Coordinates: fixing a point with two numbers. You’ll learn axes, quadrants and plotting points, and the distance formula to find lengths and check shapes.
8 short lessons · about 33 minutes in all
What you’ll learn
- 1Pinning down a spot with two distances3 min
- 2Axes, the origin and the pair of numbers4 min
- 3Points that sit on the axes4 min
- 4The four quadrants and their signs4 min
- 5Plotting points and reading corners4 min
- 6Distance along a flat or upright line4 min
- 7Distance between any two points5 min
- 8Using distances to check shapes and circles5 min
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Pinning down a spot with two distances · about 3 minutes
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More Class 9 Maths
The other 13 chapters.
CH 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 lessonsCH 14Math of Space: Surface Area and Volume10 lessons
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