Concentric circles have different radii but same ____

Options

A. Centre
B. Chord
C. Diamater
D. None of these

Answer

**Step-by-Step Solution:**

1. **Understanding Concentric Circles**: Concentric circles are circles that share the same center but have different radii.

2. **Drawing the First Circle**: Begin by drawing a circle. This will be your first concentric circle. Label the center of this circle as point O.

3. **Drawing the Second Circle**: Now, draw another circle around the first circle, ensuring that both circles share the same center O. This second circle will have a different radius than the first circle.

4. **Identifying the Radii**: Label the radius of the first circle as R1 and the radius of the second circle as R2. Note that R1 and R2 are different, indicating that the circles have different sizes.

5. **Conclusion**: Since both circles are drawn from the same center O, we conclude that concentric circles have different radii but the same center.

**Final Answer**: Concentric circles have different radii but the same **center**.

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