∠10 and ∠16 are Alternate exterior angles, ∠4 and ∠12 are Consecutive exterior angles, ∠12 and ∠13 are Consecutive Interior angles and ∠3 and ∠9 are Alternate Interior angles.
1. If two lines which are in the same plane are intersected by another line at two different lines, eight angles are formed, and that another line is called the transversal.
In the provided figure,
In the angles,
∠10 and ∠16, q is the transversal and these are Alternate exterior angles.
∠4 and ∠12, n is the transversal and these are Consecutive exterior angles.
∠12 and ∠13, q is the transversal and these are Consecutive Interior angles.
∠3 and ∠9, n is the transversal and these are Alternate Interior angles.
2. Referring tot the cube ABCDHGFE,
a. All planes that are parallel to the plane DEH are CBF and FGC.
b. All segments that are parallel to AB are EF, HG and DC.
c. All segments that intersect GH are EH, HG, FG and CG.
d. All segments that are skew to CD are AB, EF and HG.
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