CK-12 Geometry-Concepts

1.9. Linear Pairs http://www.ck12.org

3. Ifm^6 INJ= 63 ◦, findm^6 MNI.

Answers:

1. 180◦


2. 90◦


3. 180◦− 63 ◦= 117 ◦

Interactive Practice

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URL: http://www.ck12.org/flx/render/embeddedobject/113045

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For 1-5, determine if the statement is true or false.

1. Linear pairs are congruent.


2. Adjacent angles share a vertex.


3. Adjacent angles overlap.


4. Linear pairs are supplementary.


5. Supplementary angles form linear pairs.

Find the measure of an angle that forms a linear pair with^6 MRSifm^6 MRSis:

6. 54◦


7. 32◦


8. 104◦


9. 71◦


10. 149◦
    11.x◦

For 12-16, find the value ofx.

12.

13.