CK-12 Geometry-Concepts

3.3. Corresponding Angles http://www.ck12.org

1. Since they are corresponding angles and the lines are parallel, they must be congruent. Set the expressions equal
   to each other and solve forx. 3x+ 1 = 4 x−3 sox=4.


2. Since they are corresponding angles and the lines are parallel, they must be congruent. Set the expressions equal
   to each other and solve forx. 5x+ 2 = 3 x+10 sox=4.


3. Since they are corresponding angles and the lines are parallel, they must be congruent. Set the expressions equal
   to each other and solve forx. 5x+ 5 = 8 x−10 sox=5.

Interactive Practice

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1. Determine if the angle pair^6 4 and^6 2 is congruent, supplementary or neither:


2. Give two examples of corresponding angles in the diagram:


3. Find the value ofx:


4. Are the lines parallel? Why or why not?