Question:
72. If two circles touch each other internally, then the number of common tangents is:
72. If two circles touch each other internally, then the number of common tangents is:
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If two circles touch:
- Externally: \( 3 \) common tangents.
- Internally: \( 2 \) common tangents.
Updated On: Oct 27, 2025
- \( 1 \)
- \( 2 \)
- \( 3 \)
- \( 4 \)
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The Correct Option is B
Solution and Explanation
When two circles touch each other internally, there are:
- One direct common tangent.
- One transverse common tangent.
Thus, the number of common tangents is \( 2 \).
- One direct common tangent.
- One transverse common tangent.
Thus, the number of common tangents is \( 2 \).
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