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Select all pairs of angles in the figure above that are supplementaryA <1 and <7B <1 and <8C <3 and <6D <4 and <7

Select All Pairs Of Angles In The Figure Above That Are SupplementaryA Lt1 And Lt7B Lt1 And Lt8C Lt3 And Lt6D Lt4 And Lt7 class=

Sagot :

Solution

Notice that angle 1 and angle 8 are alternate interior angles

Hence,

[tex]\angle1=\angle8[/tex]

Notice that angle 8 and angle 7 are supplementary angle

Since angle 1 is equal to angle 8 it follows

Angle 1 and angle 7 are supplementary

Angle 1 and angle 3 are vertically opposite angle

Hence

[tex]\angle1=\angle3[/tex]

This implies that