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Orienting Yourself : The Use of Coordinates

CBSE · Class 9 · Mathematics

Flashcards for Orienting Yourself : The Use of Coordinates — CBSE Class 9 Mathematics. Quick Q&A cards covering key concepts, definitions, and formulas.

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Card 1Introduction to coordinates

What is a system of coordinates?

Answer

A system of coordinates is a structured framework, like the grid lines on graph paper, that helps describe the exact position of points or objects using numbers.

Card 2निर्देशांकों का परिचय

निर्देशांकों की प्रणाली क्या है?

Answer

निर्देशांकों की प्रणाली एक सुव्यवस्थित ढाँचा है, जैसे ग्राफ़ पेपर पर बनी जाली रेखाएँ, जो संख्याओं का उपयोग करके बिंदुओं या वस्तुओं की सटीक स्थिति का वर्णन करने में मदद करती है।

Card 3निर्देशांकों की ऐतिहासिक जड़ें

जालों के इतिहास में सिंधु-सarasvati सभ्यता क्यों महत्वपूर्ण है?

Answer

इसने बड़े शहरी स्तर पर पहली व्यवस्थित जाल-पद्धति का उपयोग किया। शहर की सड़कें North–South और East–West दिशाओं में लगभग 10 metres की नियमित दूरी पर बनाई गई थीं, जो व्यावहारिक जाल-आधारित योजना को दिखाती

Card 4Historical roots of coordinates

Why is the Sindhu-Sarasvati Civilisation important in the history of grids?

Answer

It used the first systematic grids on a large urban scale. City streets were built in North–South and East–West directions at regular distances of about 10 metres apart, showing practical grid-based p

Card 5Historical roots of coordinates

Who used East–West and North–South lines for geometric constructions and developed the Baudhāyana–Pythagoras Theorem?

Answer

Baudhāyana did this. His work laid the foundation of coordinate geometry by using perpendicular directions for geometric ideas.

Card 6निर्देशांकों की ऐतिहासिक जड़ें

ज्यामितीय रचनाओं के लिए East–West और North–South रेखाओं का उपयोग किसने किया और Baudhāyana–Pythagoras Theorem विकसित किया?

Answer

यह काम Baudhāyana ने किया। उनके कार्य ने ज्यामितीय विचारों के लिए लम्बवत दिशाओं का उपयोग करके निर्देशांक ज्यामिति की नींव रखी।

Card 7निर्देशांकों की ऐतिहासिक जड़ें

प्राचीन निर्देशांक चिंतन में Ujjayinī की क्या भूमिका थी?

Answer

Ujjayinī को उस बिंदु के रूप में वर्णित किया गया था जो केंद्रीय देशांतर मध्याह्न रेखा को चिह्नित करता था, जिससे अन्य स्थानों को मापा जाता था। बाद में यह अरबी भूगोल में Arin नाम से शून्य-देशांतर संदर्भ

Card 8Historical roots of coordinates

What role did Ujjayinī play in ancient coordinate thinking?

Answer

Ujjayinī was described as the point marking the central longitude meridian from which other locations were measured. It later entered Arabic geography under the name Arin as a zero-longitude reference

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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.
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