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4.1d: Angles from Secants and Tangents. CCSS. GSE. http://www.regentsprep.org/Regents/math/geometry/GP15/CircleAngles.htm. Ex. http://www.regentsprep.org/Regents/math/geometry/GP15/CircleAngles.htm. Ex. chord. A Secant is a line that goes through a circle.
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http://www.regentsprep.org/Regents/math/geometry/GP15/CircleAngles.htmhttp://www.regentsprep.org/Regents/math/geometry/GP15/CircleAngles.htm
http://www.regentsprep.org/Regents/math/geometry/GP15/CircleAngles.htmhttp://www.regentsprep.org/Regents/math/geometry/GP15/CircleAngles.htm
chord A Secant is a line that goes through a circle. It contains a chord, which is the segment in the circle.
1) http://www.regentsprep.org/Regents/math/geometry/GP15/CircleAngles.htm
2) 3) http://www.regentsprep.org/Regents/math/geometry/GP15/CircleAngles.htm
Recap of what the 3 possibilities looks like: Remember that this theorem only used the intercepted arcs. Therefore, the red arc in the picture below is not used in this formula. http://www.mathwarehouse.com/geometry/circle/tangents-secants-arcs-angles.php
Example Find x
http://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htmhttp://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htm
http://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htmhttp://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htm
http://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htmhttp://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htm
http://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htmhttp://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htm
http://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htmhttp://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htm
http://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htmhttp://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htm
http://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htmhttp://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htm
http://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htmhttp://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htm
http://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htmhttp://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htm
http://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htmhttp://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htm
http://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htmhttp://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htm
http://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htmhttp://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htm
http://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htmhttp://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htm
http://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htmhttp://www.regentsprep.org/Regents/math/geometry/GP15/PcirclesN2.htm