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Line 1: + + − #The secant is a line passing through a circle touching it at any two points on the circumference.+ − #A tangent is a line touching the circle at only one point on the circumference.+ Line 12:
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A tangent is a line touching a circle in one point. A secant is the line through two distinct points on a circle.
===Objectives===
===Objectives===
To understand tangent and secant of a circle.
===Estimated Time===
===Estimated Time===
30 minutes
30 minutes
* Digital : Computer, geogebra application, projector.
* Digital : Computer, geogebra application, projector.
* Non digital : Worksheet and pencil, compass, strings
* Non digital : Worksheet and pencil, compass, strings
* Geogebra files : Lines in a circle.ggb
* Geogebra files : [https://ggbm.at/mfeqt8w4 Lines in a circle.ggb]
{{Geogebra|mfeqt8w4}}
===Process (How to do the activity)===
===Process (How to do the activity)===