2.2 Constructing a Parallel Line (I)
Using a ruler and protractor, construct a line that is parallel to the line XY and passes through point P.
P
Y
X
Using a ruler and compass, construct a line that is parallel to the given line AB and passes through point
M.
M
B
A
Proof for parallel line using compass:
Statement
Reason
Reminder:
Complementary angles:
Supplementary angles:
Congruent means:
Corresponding angles:
Interior angles on the same side of the transversal (co-interior angles):
Alternate or opposite interior angles: