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Geometry 10.4 3­26.notebook
March 27, 2015
Announcements
­ Tests (C12)
­ Study Island User name: firstnamelastname.mhs2015
password: mhs2015
­ One calculator still missing from before spring break!
­ Jan 29­10:19 AM
10.4 Inscribed Angles and Polygons
Bell Work
1. The measure of the interior angles of a quadrilateral are 80 degrees, 100 degrees, 55 degrees, and 5x degrees. Find the value of x.
2. Solve 3x = (4x + 12)
Jan 19­9:30 PM
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Geometry 10.4 3­26.notebook
March 27, 2015
10.4 Inscribed Angles and Polygons
Theorem 10.7 Measure of an Inscribed Angle Theorem
The measure of an inscribed angle is one half the measure of its intercepted arc.
Jan 19­9:38 PM
Theorem 10.7: three cases
Jan 19­9:42 PM
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Geometry 10.4 3­26.notebook
March 27, 2015
Example 1
Find the indicated measure in circle P.
Jan 19­9:43 PM
Theorem 10.8 If two inscribed angles of a circle intercept the same arc, then the angles are congruent.
Jan 19­9:49 PM
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Geometry 10.4 3­26.notebook
March 27, 2015
Example 2
Find mRS and m STR. What do you notice about angle STR and angle RUS?
Jan 19­9:45 PM
Jan 25­2:20 PM
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Geometry 10.4 3­26.notebook
March 27, 2015
Example 3
Find the measure of the red arc or angle.
Jan 19­9:51 PM
Theorem 10.9
If a right triangle is inscribed in a circle, then the hypotenuse is a diameter of the circle. Jan 19­9:54 PM
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Geometry 10.4 3­26.notebook
March 27, 2015
Theorem 10.10
A quadrilateral can be inscribed in a circle if and only if its opposite angles are supplementary. Jan 19­10:04 PM
Example 4
Find the value of each variable. Jan 19­10:13 PM
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Geometry 10.4 3­26.notebook
March 27, 2015
Jan 25­2:22 PM
Assignment
193
195
10.4 WB with 10.5
#1-15, 17, 18, 22
197
Jan 19­10:19 PM
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Geometry 10.4 3­26.notebook
March 27, 2015
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Mar 24­9:56 AM
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Geometry 10.4 3­26.notebook
March 27, 2015
Mar 24­9:56 AM
Mar 24­9:56 AM
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Geometry 10.4 3­26.notebook
March 27, 2015
Mar 24­9:56 AM
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