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11.5.3
Author:
Emily
GeoGebra
If a tangent and a secant (or chord), two tangents, or two secants (chords) intersect in the exterior of a circle, then the measure of the angle formed is half the difference of the measures of its intercepted arcs.
New Resources
探究由平行線和截線所成的角
Poorly Drawn Parallelograms 2
Poorly Drawn Parallelograms 3
alg2_05_05_04_applet_exp_fxn_flvs
Dissections by Guillermo Bautista
Discover Resources
rhombus thing
Radar
Barber_TriangleHW
Thomson Problem v39
Properties of chord
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Unit Circle
Matrices
Limits
Curve Sketching
Random Variables