The given figure is;
Parallel Lines : parallel lines are lines in a point which do not meet
In the given figure parallel lines are;
WX and YZ
UV and QR
A) WX || YZ
B)
Perpendicular lines : lines that intersect at a right (90 degrees) angle.
In the given figure, perpendicualr lines are;
Line ST and UV
B) ST ⊥ UV
C)
Since it is given that SN is perpendicular to the line UV
Then sum of all angle at a point on a line is equal to 180 degree
Thus, Angle SNV + Angle SNU = 180
Angle SNV + 90 = 180
Angle SNV = 180- 90
Angle SNV = 90
Thus, ST ⊥ NV
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