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# 14-4 Arcs of Circles - PowerPoint PPT Presentation

14-4 Arcs of Circles. Learn vocabulary; Central Angle, Minor arc, Major arc, Semi circle. Learn definition of degree measure. A central angle of a circle is an angle whose vertex is the center of the circle. A. P. B.

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### 14-4 Arcs of Circles

Learn vocabulary; Central Angle, Minor arc, Major arc, Semi circle. Learn definition of degree measure.

• A central angle of a circle is an angle whose vertex is the center of the circle.

A

P

B

A

C

P

B

A

C

P

B

x

What is the intersection of major and minor arc AB and AXB? which lie on C but are not the end points of the same diameter.

What is the Union of the major and minor arc AB and AXB

C

x

A

B

P

A

X

r

B

mAXB = r.

X

B

A

mAXB = 180.

A

r

X

B

mAXB = 360-r

A

B

C

Pg. 469(1,2,4-6) the measure of the corresponding minor arc.

Pg. 465(5)