Geometry
Activity:
Circles, Angles, and Arcs
Posted on Mar 11, 2010
Topic: Circles
Students manipulate endpoints of an arc, manipulating an inscribed angle, and manipulating the vertex of an angle intercepting an arc in order to understand the definitions of central angle, intercepted arc, and minor and major arcs.
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Activity Key Steps:
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Students will identify central angles, major and minor arcs, intercepted arcs, and inscribed angles of a circle. They will manipulate the endpoints of an arc and visualize properties of interior angles and major and minor arcs.
Students will manipulate an inscribed angle, and an angle that intercepts an arc. Using these activities, students will be able to deduce some basic properties of inscribed angles.