1.
point
2.
line
3.
plane
4.
angle
5.
ray
6.
segment
7.
space
8.
types
of angles: acute, obtuse, right,
vertical, corresponding, alternate interior, opposite, straight, complementary,
supplementary, adjacent
9.
polygon
10.
concave
11.
convex
12.
prism
13.
pyramid
14.
cone
15.
cylinder
16.
sphere
17.
nets
18.
vertex
19.
edge
20.
face
21.
diagonal
22.
quadrilateral
23.
square
24.
rectangle
25.
rhombus
26.
kite
27.
parallelogram
28.
trapezoid
29.
parallel
lines
30.
perpendicular
lines (including slopes)
31.
transversal
32.
congruent
33.
triangle,
including scalene, isosceles, equilateral, right, acute, obtuse
34.
centers
of triangles: centroid, incenter,
orthocenter, circumcenter
35.
altitude
36.
median
37.
midsegment
38.
perpendicular
bisector (angles and segments)
39.
Triangle
Inequality Theorem
40.
Sum
of Interior Angles of Triangle
41.
Midsegment
Theorem
42.
similarity
43.
congruence
of triangles