The number of tangents that can be drawn to two non-intersecting

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The number of tangents that can be drawn to two non-intersecting circles :

1. 4
2. 3
3. 2
4. 13
5. None of these

Correct Option: A

We know that when two circle neither touch nor intersect and one lies outside the other, then 4 common tangents can be drawn.
For 4 common tangents , we get
∴ r₁ + r₂ < c₁c₂
Hence ,The number of tangents = 4