1. 10.4 Inscribed Angles & Polygons
HW pg. 676 #4­18 evens 1
March 05, 2014
Feb 21­10:00 AM
Bellwork

2. 10.4 Inscribed Angles & Polygons
HW pg. 676 #4­18 evens 2
March 05, 2014
Feb 21­11:01 AM
10.4 Inscribed Angles & Polygons
Inscribed angle: vertex is on circle & sides contain chords
Intercepted arc: lies inside of inscribed angle & endpoints on angle
Measure of Inscribed Angle Theorem: measure of inscribed angle
A
B
CD
m<ADB = 1/2 mAB

3. 10.4 Inscribed Angles & Polygons
HW pg. 676 #4­18 evens 3
March 05, 2014
Feb 21­11:46 AM

4. 10.4 Inscribed Angles & Polygons
HW pg. 676 #4­18 evens 4
March 05, 2014
Feb 21­11:48 AM
Theorem 10.8: If 2 inscribed <s intercept the same arc,
then the <s are ≅.
A
B
C
D <ADB ≅ <ACB

5. 10.4 Inscribed Angles & Polygons
HW pg. 676 #4­18 evens 5
March 05, 2014
Feb 21­11:54 AM
Inscribed Polygon: all vertices line on a circle
Circumscribed circle: contains inscribed polygon
inscribed triangle inscribed pentagon
circumscribed circles
Theorem 10.9: If a right is inscribed, then hypotenuse is diameter.
http://www.youtube.com/watch?v=kSEZReRYPZ8

6. 10.4 Inscribed Angles & Polygons
HW pg. 676 #4­18 evens 6
March 05, 2014
Feb 21­1:23 PM
Inscribed Quadrilateral Theorem: a quad can be inscribed iff
its opposite <s are supplementary.

7. 10.4 Inscribed Angles & Polygons
HW pg. 676 #4­18 evens 7
March 05, 2014
Feb 21­1:26 PM
10.4 HW pg. 676 #4-18 evens