Transverse Common Tangents
A common tangent is called a transverse common tangent if
the circles lie on opposite sides of it.
In the figure, WX is a transverse common tangent as the circle with centre O lies below it and the circle with P lie above it.
YZ is the other transverse common tangent as the circle with
centre O lies above it and the circle with centre P lies below it. A transverse
common tangent is possible only when the circles are apart.
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10th Grade Math
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