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bittu45

Asked: November 24, 2023In: Class 9 Maths

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)

NCERT Solutions for Class 9 Maths Chapter 9 Circles Exercise 9.2 Question 4. NCERT Question Exercises 9.2 9th Maths Chapter 9 Circles NCERT Academic Session 2023-2024 CBSE Board and Others state Board Description: Concentric circles share a common center and differ ...

bittu45

Asked: November 24, 2023In: Class 9 Maths

Prove that if chords of congruent circles subtend equal angles at their centres, then the chords are equal.

NCERT Solutions for Class 9 Maths Chapter 9 Circles Exercise 9.1 Question 2. NCERT Questions Exercises 9th Maths Chapter 9 Circles NCERT Academic Session 2023-2024 CBSE Board and Others state Board Description: – A central angle is formed by extending the endpoints ...

bittu45

Asked: November 24, 2023In: Class 9 Maths

Recall that two circles are congruent if they have the same radii. Prove that equal chords of congruent circles subtend equal angles at their centres.

NCERT Solutions for Class 9 Maths Chapter 9 Circles Exercise 9.1 Question 1. NCERT Questions Exercises 9th Maths Chapter 9 Circles NCERT Academic Session 2023-2024 CBSE Board and Others state Board Description: A chord of a circle is a straight ...

jimmy389

Asked: March 24, 2023In: Class 9 Maths

In Fig. 6.44, the side QR of ∆ PQR is produced to a point S.

If the bisectors of ∠ PQR and ∠ PRS meet at point T, then prove that ∠ QTR = 1/2 ∠QPR. NCERT CLASS 9 CHAPTER 6 Exercise 6.3 Lines and Angels Question No. 6 Page No. 6

jimmy389

Asked: March 22, 2023In: Class 9 Maths

In Fig. 6.13, lines AB and CD intersect at O.

If ∠ AOC + ∠ BOE = 70° and ∠ BOD = 40°, find ∠ BOE and reflex ∠ COE. NCERT Class 9 Mathematics Chapter 6 Page No. 96 Exercise 6.1 Question No. 1

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)

Prove that if chords of congruent circles subtend equal angles at their centres, then the chords are equal.

Recall that two circles are congruent if they have the same radii. Prove that equal chords of congruent circles subtend equal angles at their centres.

In Fig. 6.44, the side QR of ∆ PQR is produced to a point S.

In Fig. 6.13, lines AB and CD intersect at O.

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