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Name: _____________________________________________________________
CHAPTERS 6 & 7 HOMEWORK
Period: ________________
Honors Geometry 2010-2011
CHAPTER 6
Day
Section
6.1
Pages
272 – 275
Assignment
# 2, 4 (sketch), 5, 7, 8, 14-16
14: Emily Wang
16: Emily Wohrer
1
6.2
278 – 281
# 1, 2, 3, 5, 6, 7, 10
7: Jamie
10: Heather
Definitions & Properties
Done
Plane: for every two points on the surface, their
line is on the surface.
Postulate: three non-collinear points determine a
plane.
Thm: a line and a point not on the line determine
a plane.
Thm: two intersecting lines determine a plane.
Thm: two parallel lines determine a plane.
Postulate: a line not in a plane intersects the
plane in exactly one point.
Postulate: two planes intersect in exactly one line.
Def: A line is perpendicular to a plane iff
it is perpendicular to every line in the plane
through the foot.
Thm: If a line is perpendicular to two lines in
plane, then it is perpendicular to the plane
CHAPTER 7
Day
Section
7.1
Pages
298 – 301
Assignment
# 1 – 12, 13, 14, 15, 16
13: Jackie
14: Alisa
2
7.2
304 – 306
3
# 1 – 9, 14
7: Megan
9: Alexis
7.3
309 – 313
# 1 – 8, 10ace, 11, 13a, 14, 17,
20, 23
20: Anika
23: Adria
4
Definitions & Properties
Thm: The sum of the angles in a triangle is 180˚.
Def: Exterior angle – adjacent and supplementary
to an interior angle.
Thm: The measure of an exterior angle is equal to
the sum of the two remote interior angles.
Mid-line Thm: A segment joining the midpoints of
two sides of a triangle is parallel to the third
and 1/2 the measure
Thm: If two pairs of angles of corresponding
triangles are congruent, then the third angles
are congruent (No Choice).
Thm: AAS (two angles and NON-included side).
Polygons:
Sides Name
Sides Name
3 triangle
7
heptagon
4 quadrilateral 8
octagon
5 pentagon
9
nonagon
6 hexagon
10
decagon
12 dodecagon
Thm: The sum of the interior angles of an n-gon
is: S  (n  2) 180
Thm: The sum of the exterior angles of an n-gon
is: S  360
Thm: The number of diagonals of an n-gon is:
d
n(n  3)
2
Done
CHAPTER 7
Day
Section
7.4
Pages
316 – 318
Assignment
# 1 – 6, 10 – 14, 17
14: Melissa
17: Olivia
5
Definitions & Properties
Def: A regular polygon is both equilateral and
equiangular.
Thm: The sum of the exterior angles of an n-gon
is: S  360
Thm: The measure of an exterior angle of a
regular n-gon is: Ext   360
n
Thm: The measure of an interior angle of a
regular n-gon is: Int   180  360
n
6
7
6.Rev
7.Rev
6&7
Test
288 – 290
320 – 323
# 1, 6
# 1, 5, 9, 12, 13, 15
Ch 6 & 7 Study Guide
Date:
7th: Jan 24th (Monday)
Done