**MATH 7200 Discussion Points, Section 1.1**

Euclidean Parallel Postulate.

Through a given point not on a line

lthere is exactly one line parallel tol.Hyperbolic Parallel Postulate

Given a line

land a point P not onl, there exist at least two lines through P that are parallel tol.See resources on main MATH 7200 page (or do Google Searches)

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

Proof (b)

Proof (c)

EXAMPLE 1 --- This is the proof presented in the text. Are there any questions?