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8.4 Name (print first and last) _____________________________________ Per_____ Date: 3/28 due 3/31 8.4 Circles: Angles and arcs with intersecting chords Geometry Regents 2013-2014 Ms. Lomac SLO: I can identify relationships with arc measures and chords and use them to solve problems. (1) Use the website link for 8.4 to investigate the relationship between angles formed by intersecting chords and the arcs they intercept. Complete a sketch for each example. Be sure to label the vertical angles 40 degrees and the intercepted arcs with possible measures.. Two chords intersect and the pair of vertical angles formed are each 40°. The measures for the intercepted arcs could be: ________ and ________ ________ and ________ ________ and ________ Write a sentence that summarizes the relationship between the measure of the vertical angles formed by two chords and the arcs intercepted by them. Include a labeled diagram and an equation showing the relationship. __________________________________________________________________________________________________ __________________________________________________________________________________________________ (2) For a-c, find the unkown arc or angle measure. *** Highlighting arcs and angles can be helpful. (a) (b) 8.4 (d) (e) (f) (g) (h)