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Unformatted text preview: only if no other angle has the same vertex. Examples: Think and Communicate (page 35) 1.) 2.) Congruent angles and angle addition Just as tick marks show that segments are congruent, arcs near angle vertices show that certain angles are congruent. 1 and 2 are congruent. Similar to segment addition, you can the measures of 1 and 2 to find the of ABC . Checking Key Concepts (page 37) 1.) 2.) 3.) 4.) 5.) 6.) 7.) 8.)...
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