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http://i66.tinypic.com/nnsdb9.jpg

 

circle question

 Apr 24, 2017
 #1
avatar+9463 
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a.

A minor arc is an arc that measures less than 180º

The minor arcs are: arc AB

                                arc AD

                                arc BC

                                arc BD

                                arc CD

b.

A semicircle is an arc that measures exactly 180º

The semicircles are: arc ABC and arc ADC

 

c.

A major arc is an arc that measures more than 180º

The major arcs are: arc ADB

                                arc ABD

                                arc BAC

                                arc BAD

                                arc CAD

 

To find all the major arcs, I looked at the minor arcs and stated the alternate way to connect those two points. Notice that the first and last letters are the same.

 Apr 24, 2017

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