McGraw Hill Integrated II, 2012
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McGraw Hill Integrated II, 2012 View details
5. Tangents
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Exercise 1 Page 753

A tangent is a line that intersects a circle at exactly one point. A common tangent is a line that is tangent to two circles in the same plane.

No common tangent.

Practice makes perfect

A tangent is a line that intersects a circle in exactly one point. A common tangent is a line that is tangent to two circles in the same plane. In the given diagram, none of the lines which are tangent to the first circle are tangent to the second circle. Therefore, there are no common tangents.