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Ex 5.2, 1
Last updated at May 26, 2026 by Teachoo
Class 9
Chapter 5 Class 9 - I’m Up and Down, and Round and Round (Ganita Manja
- Definitions
- Symmetries of Circle
- Number of Circles
- Exercise Set 5.1
- Think, Draw and Infer (Page 98)
- Angle Subtended by Chords
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Exercise Set 5.2
- Mid-points and Perpendicular Bisectors of Chords
- Exercise Set 5.3
- Distance of Chords from the Centre
- Exercise Set 5.4
- Distance of unequal chords from center
- Exercise Set 5.5
- Angle subtended by an arc
- Exercise Set 5.6
- Concyclicity of Points and Cyclic Quadrilateral
- Theorems (and their Proofs)
- End-of-Chapter Exercises
Transcript
Ex 5.2, 1 Show that the triangle formed by a chord and the centre of the circle is isosceles. Let’s make chord AB on the circle Triangle formed by chord and center of circle is ∆ AOB We need to prove ∆ AOB is isosceles Now, in ∆ AOB OA = OB Since two sides are equal, thus ∆ AOB is an isosceles triangle Hence proved
