Angles and Parallel Lines SACHS
 When a transversal crosses a pair of parallel lines        it creates two sets of identical angles.Complete the 4 missing angles below.100ο80ο​οο100ο80οο​ο The matching angles are called corresponding angles.αHence, Corresponding Angles are equal.αThere are​α​αpairs of Corresponding Angles.​α​α​α​α x =ο p =​ο k =​ο d =q =​ο​ο αThere areαThe equal angles between the parallel lines           are called alternate angles.Hence, Alternate Angles are equal.pairs of Alternate Angles.​α​α m =​ο q =​ο b =​ο m =d =​ο​ο There areαθCo-interior Angles are supplementary.The angles together between the parallel lines add to 180ο.pairs of Co-interior Angles.θ​α m =​ο p =​ο x =​ο b =a =​ο​ο Angle g is corresponding to angleAngle c is alternate to angleAngle e is co-interior to anglehedgafcb Angle p is equal to:126ο alternate angles126ο corresponding angles54ο co-interior anglesSelect the correctangle and reasonin relation to thegiven angle. Angle q is equal to:126ο alternate angles126ο corresponding angles54ο co-interior anglesSelect the correctangle and reasonin relation to thegiven angle. Angle r is equal to:126ο alternate angles126ο corresponding angles54ο co-interior anglesSelect the correctangle and reasonin relation to thegiven angle.
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