Скачать или смотреть Class 9 Circles Ex 9.2 Q4 NCERT new Syllabus 2023 | Ex 10.4 Q4 Circles class 9th Maths Old ncert

Class 9 Circles Ex 9.2 Q4 NCERT new Syllabus 2023 | Ex 10.4 Q4 Circles class 9th Maths Old ncert

Here we will Solve Question 4 Exercise 9.2 Circles New NCERT 2023 edition
In old Ncert it is given as Exercise 10.4 Question 4 class 9th Maths

Q4.
If a line intersects two concentric circles (circles
with the same centre) with centre O at A, B, C and
D, prove that AB = CD (see Fig. 9.12).

Full chapter 9 Circles Playlist here👇👇
Class 9th Maths Chapter 9 Circles New ncert 2023:    • Class 9th Maths Chapter 9 Circles New ncer...  

Theorem 9.3: The perpendicular from the centre of a circle to a chord bisects the chord👇   • Theorem 9.3 Circles class 9th Maths | Theo...  
Theorem 9.4 : The line drawn through the centre of a circle to bisect a chord is perpendicular to the chord👇👇👇👇👇👉   • Theorem 9.4 Circles class 9th Maths | Theo...  
Theorem 9.5: Equal chords of a circle are equidistant from the centre 👉   • Theorem 9.5 Circles class 9th Maths New NC...  
Theorem 9.6: Chords equidistant from the centre of a circle are equal in length👉   • Class 9th Chapter 9 Circles Theorem 9.6 Ne...  
Theorem 9.7 : 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👇    • Theorem 9.7 Circles class 9 Maths New syll...  
Theorem 9.8 : Angles in the same segment of a circle are equal👉    • Theorem 9.8 Circles class 9 Maths New syll...  
Theorem 9.9 : 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 (i.e. they are concyclic).👇   • Class 9th Chapter 9 Circles Theorem 9.9 Ne...  
Theorem 9.10 : The sum of either pair of opposite angles of a cyclic quadrilateral is 180º.👇
   • Class 9th Chapter 9 Circles Theorem 9.10 N...  
Theorem 9.11 : If the sum of a pair of opposite angles of a quadrilateral is 180º, the quadrilateral is cyclic.
👉   • Class 9th Chapter 9 Circles Theorem 9.11 N...  

Question 5 Exercise 9.2 Circles New NCERT 2024 edition 👉   • Class 9 Circles Ex 9.2 Q5 NCERT new Syllab...  

Exercise 10.4 Question 6 class 9th Maths
   • Class 9 Circles Ex 9.2 Q6 NCERT New Syllab...  
👉Class 9 Circles Ex 9.2 Q6 NCERT New Syllabus 2024
In this video we have solved Example number 1 from ncert new book class 9 Mathematics ch 9 Circles based on latest CBSE pattern   • Class 9 Circles Ex 9.2 Q6 NCERT New Syllab...  

Example 1 : If two intersecting chords of a circle make equal angles with the diameter passing through their point of intersection, prove that the chords are equal.
👉   • Class 9th Chapter 9 Circles Example 1 New ...  

Example 2: In Fig. 9.19, AB is a diameter of the circle, CD is a chord equal to the radius of the circle. AC and BD when extended intersect at a point E. Prove that ∠ AEB = 60°
👉   • Class 9th Chapter 9 Circles Example 2 New ...  
Example 3 : In Fig 9.20, ABCD is a cyclic quadrilateral in which AC and BD are its diagonals. If ∠ DBC = 55° and
∠ BAC = 45°, find ∠ BCD.👉   • Class 9th Chapter 9 Circles Example 3 New ...  

Example 4: Two circles intersect at two points Aand B. AD and AC are diameters to the two circle (see Fig. 9.21). Prove that B lies on the line segment DC.
👉   • Class 9th Chapter 9 Circles Example 4 New ...  

Example 5 : Prove that the quadrilateral formed (if possible) by the internal angle bisectors of any quadrilateral is cyclic
👉   • Class 9th Chapter 9 Circles Example 5 New ...  

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