The number of tangents drawn to a circle

Summary With the help of this activity, we have learnt that:  When A lies outside the circle then we can draw 2 tangents passing through A.  If A lies inside the circle then there will be no tangent passing through A.  When point B is present on the circumference of the circle then there will be only one tangent passing through it. (Practically it is difficult to place point A on the circumference of the circle therefore we have taken one more point B to explain this condition

 

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Resource Type
Activity
Tags
circle  tangent  tangents 
Target Group (Age)
19+
Language
English (United Kingdom)
 
 
GeoGebra version
4.0
Views
1494
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