Description
The Opening Exercise reviews and solidifies the concept of secants intersecting inside of the circle and the relationships between the angles and the subtended arcs. Students then extend that knowledge in the Exploratory Challenge and Example. The Exploratory Challenge looks at a tangent and secant intersecting on the circle. The Example moves the point of intersection of two secant lines outside of the circle and continues to allow students to explore the angle/arc relationships.
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Credits
From EngageNY.org of the New York State Education Department. Geometry Module 5, Topic C, Lesson 15.
Available from engageny.org/resource/geometry-module-5-topic-c-lesson-15; accessed 2015-05-29.
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