2. 12-2 Chords and Arcs To use congruent chords, arcs, and central angles. To use perpendicular bisectors to chords. With a knowledge of proving triangles congruent, students will prove that chords that are equidistant from the center of a circle are congruent.

17. 12-2 Quiz The following questions are to help you decide how well you understood today’s lesson. Please make sure to ask if there is one you miss and you do not understand why! Make sure you record the number you get right on your portfolio sheet

18. A.18.5 B.19 C.20.5 D.27.2 1. Find the value of x. If necessary, round your answer to the nearest tenth. The figure is not drawn to scale.

19. A.13 B.26 C.38.5 D.77 2. Find the value of x. If necessary, round your answer to the nearest tenth. The figure is not drawn to scale.

20. A.13.5 B.21.9 C.181.3 D.24 3. Find the value of x. If necessary, round your answer to the nearest tenth. The figure is not drawn to scale.

21. 4. The circles are congruent. What can you conclude from the diagram?

22. A.12 ft B.3 ft C.6 ft D.36 ft

23. ASSIGNMENT: 12-2 p.776-778 #6-32 even Be sure to RATE your understanding of the lesson 4-3-2-1-0 after you finish it AND give me one complete sentence as to why you rated yourself that way then summarize what the lesson was about in a couple of complete sentences.