Question:
If two circles touch each other externally, then what is the number of common tangents?
If two circles touch each other externally, then what is the number of common tangents?
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For two externally touching circles, there are 4 common tangents: 2 external and 2 internal tangents.
Updated On: Oct 27, 2025
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The Correct Option is D
Solution and Explanation
Step 1: When two circles touch each other externally, there are four common tangents:
- Two external tangents
- Two internal tangents
Thus, the number of common tangents is 4.
Thus, the correct answer is \( \boxed{4} \).
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