Obj SWBAT find the lengths of chords arc measures and tangent lines G11a b WU checkpoint G5 graded hwhw logfoldable Arcs amp Chords and Tangents storybook SecantsTangentsChords in Circles ID: 568506
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Slide1
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)Slide2
Obj
Check hw answers with key, after completing G.9Answer hw questionsGive answers to 3NW TEI/Sol packetNew lessonQuiz day 57Slide3
Thm: In a circle or in congruent circles, two chords are congruent
iff their corresponding chords are congruent.Ex: In A, if ___ ___
, then ___ ___.Slide4
Thm
: In a circle, if a diameter is
perpendicular to a chord, then it bisects the chord and its arc.Slide5
Thm
: In a circle or in congruent circles, two chords are congruent iff they are equidistant from the center.Slide6
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
.Slide7
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.Slide8Slide9Slide10Slide11