Name: _____________________________________________________________
CHAPTER 4 HOMEWORK
Day Section
4.1
Period: ________________
HGEO 2010-2011
Pages
172-175
Assignment
# 1, 2, 4-6, 8, 9
Definitions & Properties
Detour Proofs: To solve a proof it is
necessary to prove more than one pair of
triangles
Midpoint Formula: for a segment with
endpoints of (x1, y1) & (x2, y2) midpoint is
.
4.3
182-183
#1, 4-9, 11, 15
4.5
196-197
#1 – 5
Thm: If two angles are supplementary and
congruent, then they are right angles.
Plane: a surface such that for all two points
that are on the surface, their line is on
the surface.
Coplaner: contained with the same plane.
Transversal: a line that intersects two given
lines.
Interior: the area between the two given lines.
Exterior: the area not between them.
Corresponding angles: angles in the same
relative position WRT the intersection of
the transversal and a given line.
Alternating angles: angles in the opposite
relative position WRT the intersection of
the transversal and a given line.
Parallel lines: two coplanar lines that don’t
intersect.
4.6
202-204
# 1ade, 2 – 15
1
2
Slope: up-ness over over-ness
or
Positive slope: up to the right
Negative slope: down to the right
(vertical line has undefined slope)
Thm: Two lines are parallel iff their slope are
=
Thm: Two lines are perpendicular iff their
slopes are negative reciprocals.
3
4
Rev
5
Test
206-209
#2-4, 6 (challenge), 7, 9, 10,
11, 14, 17-18
& Study Guide
Test
7th ~ Nov 12th
Done