Definition of Common External Tangent
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Examples of Common External Tangent
Solved Example on Common External Tangent
Identify the common external tangent from the given figure.
D. none of the above
Correct Answer: B
Step 1: A tangent that is common to two circles and does not intersect the segment joining the centers of the circles is called common external tangent.
Step 2: In the given figure, the line CD touches both the circles on the same side of the line is the external tangent to the circle.
Step 3: So, CD is the common external tangent line.
Related Terms for Common External Tangent