ids on. time to grade. - moore public schools€¦ · ids on. time to grade. assignment 10.2 (230...
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Geometry 10.3 324.notebook
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TIME TO GRADE. IDs ON.
Assignment 10.2 (230 even)
GRAB A CRAYON
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10.3 Properties of ChordsBell Work
A water sprinkler covers the area shown. It moves across the covered area at 5 degrees per second.
1.What is the measure of the arc covered by the sprinkler?
2. If the sprinkler starts at the far left position how long will it take for the sprinkler to reach the far right position?
Geometry 10.3 324.notebook
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Let's Review
Tell whether the given arcs are congruent.
What is the measure of the given angle?
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Geometry 10.3 324.notebook
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Announcements
Quiz Tomorrow
Phones
Homework (show work and do your own work)
Training tomorrow morning (no morning help)
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10.3 Properties of Chords
In the same circle, or in congruent, two minor arcs are congruent if and only if their corresponding chords are congruent.
Theorem 10.3
Geometry 10.3 324.notebook
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Do not Draw: what do you know about this?
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Geometry 10.3 324.notebook
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Theorem 10.4 and 10.5
Thm 10.4
Thm 10.5
E
F
GH
D
S
T
P
R
Q
If QS is a perpendicular bisector of TR, then QS is a diameter of a circle.
If EG is the diameter and EG FD, then HD HF and GD GF.
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Theorem 10.4 and 10.5
Geometry 10.3 324.notebook
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Example 3
Using E, find the length of AC. Tell what theorem you used.
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Find the measure of each of the following arcs.
Example 4
1. CD 2. DE 3. CE
Geometry 10.3 324.notebook
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Questions?
Comments?
Concerns?
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In the same circle, or in congruent circles, two chords are congruent if and only if they are equidistant from the center.
Theorem 10.6
Geometry 10.3 324.notebook
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Example 5
In C, QR = ST = 16. Find CU.
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Geometry 10.3 324.notebook
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Assignment
10.3 Workbook (page 190192)
# 218 even and 17
#216 even you have to tell what theorem you are using!! Use your notebook.
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Homework Help