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Theorem 11.5.3
Author:
jwells20
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.
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အခြေခံ data အခေါ်အဝေါ်များ
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