CK-12 Geometry-Concepts

(Marvins-Underground-K-12) #1

1.8. Supplementary Angles http://www.ck12.org



  1. Ifm^6 INJ= 63 ◦, findm^6 JNL.


For exercises 10-13, determine if the statement is true or false.



  1. Supplementary angles add up to 180◦.

  2. Two angles on a straight line are supplementary angles.

  3. To be supplementary, two angles must be touching.

  4. It’s possible for two angles in a triangle to be supplementary.


For 14-15, find the value ofx.


14.


15.

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