MATH 7200 Discussion Points, Section 1.1
Euclidean Parallel Postulate.
Through a given point not on a line l there is exactly one line parallel to l.
Hyperbolic Parallel Postulate
Given a line l and a point P not on l, there exist at least two lines through P that are parallel to l.
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1.1 Angles and their Measurement
Pairs of Angles
Adjacent angles
Vertical angles
Supplementary angles
Complementary angles
Acute Angle
Obtuse Angle
Right Angle
Straight Angle
Congruent
Notation Conventions
Theorem 1.1
EXAMPLE 1 --- Are there any questions?
PROBLEM SET 1.1
1. For discussion and questions
2. We discussed this one in class last time. Notice the typo: In the last paragraph, the first triangle named should be ABD.
3. For discussion.
