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Question 2 - Think, Draw and Infer (Page 98) - Chapter 5 Class 9 - I’m Up and Down, and Round and Round (Ganita Manja
Last updated at May 26, 2026 by Teachoo
Think, Draw and Infer (Page 98)
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
- 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
Question 2 The circumcircle of a given △ABC is drawn. Can there be other triangles congruent to △ABC that share the same circumcircle? Congruent triangles have same length of sides and same angles Let’s draw ∆ ABC with circumcircle Now, let’s You grab the triangle and rotate it inside the circle like a steering wheel. We notice that the new ∆ A’B’C’ is the same shape and size of ∆ ABC Thus, both triangles are congruent Similarly, we can rotate the same triangle in infinite number of ways to get infinite number of congruent triangles
