SCC is a place where u can get free study material for academic & competitive exams like CTET,SSC,IIT,NDA,Medical exams etc,

Wednesday, 4 November 2015

Important rules of circle

Important rules of circle
Points to Remember :-

1. A circle is a collection of all the points in a plane, which are equidistant from a fixed point in the plane.

2. Equal chords of a circle (or of congruent circles) subtend equal angles at the centre.
Important rules of circle

3. If the angles subtended by two chords of a circle (or of congruent circles) at the centre (corresponding centre) are equal, the chords are equal.

4. The perpendicular from the centre of a circle to a chord bisects the chord.

5. The line drawn through the centre of a circle to bisect a chord is perpendicular to the chord.

6. There is one and only one circle passing through three non-collinear points.

7. Equal chords of a circle (or of congruent circles) are equidistant from the centre (or corresponding centres).

8. Chords equidistant from the centre (or corresponding centres) of a circle (or of congruent circles) are equal.

9. If two arcs of a circle are congruent, then their corresponding chords are equal and conversely, if two chords of a circle are equal, then their corresponding arcs (minor, major) are congruent.

10. Congruent arcs of a circle subtend equal angles at the centre.

11. The angle subtended by an arc at the centre is double the angle subtended by it at any point on the remaining part of the circle.

12. Angles in the same segment of a circle are equal.

13. Angle in a semicircle is a right angle.

14. If a line segment joining two points subtends equal angles at two other points lying on the same side of the line containing the line segment, the four points lie on a circle.
15. The sum of either pair of opposite angles of a cyclic quadrilateral is 180°.
16. If the sum of a pair of opposite angles of a quadrilateral is 180°, then the quadrilateral is cyclic.


Read more topics 
Basic-trigonometry-identities
  
 Application of Trigonometry 

Area of shaded region

Graphing-linear-inequalities solving

Introduction-of-co-ordinate-geometry

Probability

Materials-metals-and-non-metals

Quadratic-equation-word-problems

Trignometry-solved-questions

Surface-areas-and-volumes

Sequence

Linear-equations

Sample paper 1

Sample paper 2

Sample paper 3

Sample paper 4

Circle (Important Question) 

 Arithmetic Progression


circle (hindi)

Probability  (hindi)



Mensuration ( Hindi )

Circle important questions ( hindi )


A.P (Hindi)

Geometry (Hindi)

Trigonometry in Hindi 2

Polynomial in hindi

Share on Google Plus Share on whatsapp

Search

Popular Posts

Facebook

Blogger Tips and TricksLatest Tips For BloggersBlogger Tricks
SCC Education © 2017. Powered by Blogger.

Total Pageviews