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Orienting Yourself : The Use of Coordinates

CBSE · Class 9 · Mathematics

Complete topic list for Orienting Yourself : The Use of Coordinates in CBSE Class 9 Mathematics. Key concepts, sub-topics, and what to focus on for board exams.

89 questions80 flashcards5 concepts

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2 Topics · CBSE Class 9 Mathematics

Topics in Orienting Yourself : The Use of Coordinates

1

4. Distance between two points in the plane

  • The Baudhāyana–Pythagoras Theorem helps find the distance between any two points in the xy-plane.
  • Triangle ADM is used as a worked example in the chapter.
  • For A = (3,4) and D = (7,1), the x-distance is 7 - 3 = 4 and the y-distance is 4 - 1 = 3.
2

5. Historical development of coordinate ideas

  • Baudhāyana used East–West and North–South lines for geometric constructions and developed the Baudhāyana–Pythagoras Theorem.
  • Ujjayinī was described as the point marking the central longitude meridian from which all other locations were measured.
  • Ptolemy described latitudes and longitudes of thousands of locations, including Ozine (Ujjayinī).

Key Concepts

Central concept: Coordinate system and coordinate geometry

Grid-based thinkingTwo-dimensional coordinate systemCartesian planeQuadrantsCoordinates of a pointPoints on axesDistance between two pointsReflection in the y-axis

Frequently Asked Questions

What are the important topics in Orienting Yourself : The Use of Coordinates for CBSE Class 9 Mathematics?
Orienting Yourself : The Use of Coordinates covers several key topics that are frequently asked in CBSE Class 9 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Orienting Yourself : The Use of Coordinates — CBSE Class 9 Mathematics?
Understand the core concepts first, then work through the 89 practice questions available for this chapter. Revise formulas and 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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