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Mathematics 7 Online
OpenStudy (anonymous):

How do you draw 2 circles with 3 common tangents?

OpenStudy (amistre64):

|dw:1332298169384:dw|

OpenStudy (amistre64):

something like that

OpenStudy (anonymous):

Do you know what a tangent of a circle means?

OpenStudy (anonymous):

kind of

OpenStudy (anonymous):

Explain your version....

OpenStudy (anonymous):

a line in the plane of a circle that intersects the circle in exactly one point

OpenStudy (anonymous):

Yes. It is a line that touches the circle at a single point. It is also a line that is "perpendicular" to the line connecting that single point to the center of the circle. |dw:1332298565609:dw|

OpenStudy (anonymous):

2 Circles can have 3 common tangents. They don't have to look the way previously drawn (meaning, the circles don't have to be attached). For example, the following works too: |dw:1332298642982:dw|

OpenStudy (anonymous):

The drawings are not perfect because the draw tool is not easily adaptable. But, you should get the point.

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