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- 1. Circle MATHEMATICS STANDARD: VI
- 2. S Circle in daily life Q Circle in music PQ ord Ch Circle in sports P Circle Diameter DE Centre D E Circumference O M O Centre Circular region s u di Radius Ra F Diameter M Chord RE rc Arc G A Semicircle Segments of a circle Crossword
- 3. A circle BACK
- 4. Many musical instruments have a circular surface. For example: Bingo Drum BACK Tabla Snare Drum Bass Drum
- 5. A circle BACK Five rings in the logo of Olympic games
- 6. A circle is a closed curve in a plane. A circle can be drawn with the help of a circular object. For example: A circle drawn with the help of a coin. BACK
- 7. A circle is a closed curve consisting of all points in a plane which are at the same distance (equidistant) from a fixed point inside it. Centre O This fixed point (equidistant) inside a circle is called centre. A circle has one and only one centre. A circle
- 8. A Centre O A circle The distance around a circle is called its circumference.
- 9. A circle divides a plane into three parts. 3. Exterior of a circle Centre O 2. Interior of a circle A plane 1. The circle The interior of a circle together with its circumference is called the circular region.
- 10. us di Ra O Centre M A point on the circle A line segment that joins any point on the circle to its centre is called a radius. (Contd…)
- 11. (Contd…) N Centre O us di a R K M L Radii ( plural of radius) of a circle are equal in length. Infinite number of radius can be drawn in a circle.
- 12. A O Centre Diameter AB A circle B A line segment that joins any two points on the circle and passes through its centre is called a diameter. (Contd…)
- 13. (Contd…) M A A circle P Centre O Q B N Infinite number of diameters can be drawn in a circle. As the radii of a circle are equal in length, its diameters too
- 14. (Contd…) M Diameter MN Radius OM O Radius ON N Centre Radius OM = Radius ON Diameter MN = Radius OM + Radius ON The length of the diameter of a circle is twice the length of its radius.
- 15. A is a point on the circle A Chord A line segment that joins point A and B B is another point on the circle B O A line segment that joins any two points on the circle is called a chord.
- 16. M Cho rd MN N O C Chord CD Diameter CD L D K L ord K Ch Diameter is also a chord of the circle. (Contd…)
- 17. M Chord MN N O C D Diameter CD K Chord KL L D C M N The diameter is the longest chord. (Contd…)
- 18. M Chord MN G Ch or d N O Centre GH K L Chord KL H Infinite number of chords can be drawn in a circle. BACK
- 19. K L O Centre An arc is the distance between any two points on the circumference of a circle. (Contd…)
- 20. Naming an arc X K Arc KXL L O Centre An arc is named by three points, of which two are the end points of the arc and the third one lies in between them. (Contd…)
- 21. Minor Arc KXL K X L O Centre Major Arc KYL Y An arc divides the circle into two parts: the smaller arc is called the minor arc, the larger one is called the major arc. (Contd…)
- 22. An arc An arc
- 23. S Semicircle DSE Arc DSE Diameter D E O Centre R Semicircle DRE Arc DRE Half of a circle is called a semicircle. A semicircle is also an arc of the circle. (Contd…)
- 24. Semicircle DSE Semicircular region D O Diameter Centre E Semicircular region Semicircle DRE The diameter of a circle divides it into 2 semicircular regions. BACK
- 25. S D Minor segment of a circle E Chord DE Centre O Major segment of a circle R A chord divides the circular region into 2 parts, each of which is called a segment of the circle. (Contd…)
- 26. P Minor arc DPE E D Chord DE Centre Minor segment of the circle O Major segment of the circle Major arc DQE Q The part of the circular region enclosed by a minor arc and major the chord is called a minor segment.centre of the major Minor segment does not the centre of the circle. circle. Major contains contain the BACK
- 27. O Centre Radius Diameter Chord Arc Semi Circle
- 28. sO iu ad R M O Centre M Radius Diameter Chord Arc Semi Circle
- 29. Diameter DE D O E Centre Radius Diameter Chord Arc Semi Circle
- 30. Ch o r d PQ Q P O Centre Radius Diameter Chord Arc Semi Circle
- 31. E O Centre R PQ rc F A G Radius Diameter Chord Arc Semi Circle
- 32. S Semicircle DSE Semicircle D Diameter O E Centre Semicircle Radius Diameter Chord Arc Semi circle
- 33. 2C 1A 4D I R R 5C I R C A M E T E 3R A L D E U I M U F S E 6C E N T R E N E 4. The line segment that joins any two points on the circle and passes through its centre. 5. A closed curve in a plane. 6. All points on the circle are equidistant from this point. 7. A line segment that joins any two points on a circle. Down 1. The distance between any two points on the circumference of the circle. 2. The distance around the circle. E 7C H Across: O R D 3. The distance from the centre of the circle to a point on the circle.

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