1. Arcs, Chords and Tangents (G.11c/2.1,12.2)
Obj: SWBAT find the lengths of chords, arc measures and tangent lines. (G.11a, b)
WU: checkpoint G.5 graded!!!
**hw/hw log/foldable: “Arcs & Chords” and “Tangents”
storybook: “Secants/Tangents/Chords in Circles”
Regular- workbook p. 311 and 315
HW (day 56):
Worksheet day 58
Self Evaluation Pkt (pages 1-6)
Pearsonsuccess.net (due Friday)

2. Obj Check hw answers with key, after completing G.9
Answer hw questions
Give answers to 3NW TEI/Sol packet
New lesson
Quiz day 57

3. Thm: In a circle or in congruent circles, two chords are congruent iff their corresponding chords are congruent. Ex: In A, if ___  ___, then ___  ___.

4. Thm: In a circle, if a diameter is perpendicular to a chord, then it bisects the chord and its arc.

5. Thm: In a circle or in congruent circles, two chords are congruent iff they are equidistant from the center.

6. Tangent Line- a line that intersects a  in one point (pt of tangency)
Thm: If a line is tangent to a , then it is perpendicular to its radius. …..is the converse true????
Thm: If two segments form the same exterior pt are tangent, then they are then they .

7. Find x.
1. 2. Suppose a chord of a circle is 10 inches long and is 12 inches from the center of the circle. Find the length of the diameter. 3. Suppose the diameter of a circle is 34 inches long and a chord is 30 inches long. Find the distance between the chord and the center of the circle. 4. Suppose a chord of a circle is 24 cm long and is 15 cm from the center of the circle. Find the length of the radius.