Circle geometry lesson 4
531 views · Published 10 August 2013 · 9:48 · Indexed 25 October 2026
Channel: Magic Monk · 2013 · Education
In this lesson we discuss how opposite angles in cyclic quadrilaterals will sum 180 degrees, as well as the theorem that the tangent line to a circle will make a 90 degree angle to the radius at the point of contact.
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