Chapter 3.4: Styles of Proof Flashcards
1
Q
Thm. 3.3
A
if two lines are perpendicular, then they intersect to form four right angles.
2
Q
Thm. 3.4
A
all right angles are congruent.
3
Q
Thm. 3.5
A
if two lines intersect to form a pair of adjacent congruent angles, then the lines are perpendicular.