2.[https://www.geogebra.org/m/xhThfJvn Construction of tangents to a circle]
2.[https://www.geogebra.org/m/xhThfJvn Construction of tangents to a circle]
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This geogebra applet shows stepwise, how to construct tangents to a circle from an external point. The equality of lengths of tangents drawn from an external point to a circle could also be verified through this construction.
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This geogebra applet shows stepwise, how to construct tangents to a circle from an external point. The changes (if any) observed when the external point is moved around could be discussed.