I'm Up and Down, and Round and Round
CBSE · Class 9 · Mathematics
Flashcards for I'm Up and Down, and Round and Round — CBSE Class 9 Mathematics. Quick Q&A cards covering key concepts, definitions, and formulas.
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वृत्त क्या होता है?
Answer
वृत्त किसी समतल पर स्थित उन सभी बिन्दुओं का समुच्चय है जो किसी निश्चित बिन्दु से समान दूरी पर हों। वह निश्चित बिन्दु केन्द्र होता है और समान दूरी त्रिज्या होती है।…
What is a circle?
Answer
A circle is the set of all points on a plane that are equidistant from a given fixed point. That fixed point is the centre, and the common distance is the radius.
What is the centre of a circle?
Answer
The centre is the fixed point from which every point on the circle is at the same distance. If the circle has centre A, then all points on the circle are equally far from A.
वृत्त का केंद्र क्या होता है?
Answer
केंद्र वह निश्चित बिन्दु है जिससे वृत्त पर स्थित प्रत्येक बिन्दु समान दूरी पर होता है। यदि वृत्त का केन्द्र A है तो वृत्त पर स्थित सभी बिन्दु A से समान दूरी पर होते हैं।…
वृत्त की त्रिज्या क्या होती है?
Answer
त्रिज्या (radius) वृत्त के केन्द्र से वृत्त के किसी बिन्दु की दूरी होती है। एक ही वृत्त की प्रत्येक त्रिज्या की लम्बाई समान होती है।…
What is the radius of a circle?
Answer
The radius is the distance from the centre to any point on the circle. Every radius of the same circle has the same length.
What is a chord of a circle?
Answer
A chord is a line segment joining any two points on the circle. For example, if B and C lie on the circle, then BC is a chord.
वृत्त की जीवा क्या होती है?
Answer
ज्या वृत्त पर स्थित किन्हीं दो बिन्दुओं को जोड़ने वाला रेखाखण्ड होता है। उदाहरण के लिये यदि B और C वृत्त पर स्थित हैं तो BC एक ज्या है।…
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
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