在
几 何 部 分
1.所有的角
alternate angle
corresponding angle
vertical angle
central angle
interior angle
exterior angle
supplementary angles
complementary angle
adjacent angle
acute angle
obtuse angle
right angle
round angle
straight angle
included angle
2.所有的三角形
equilateral triangle
scalene triangle
isosceles triangle
right triangle
oblique
inscribed triangle
3.有关收敛的平面图形，除三角形外
semicircle
concentric circles
quadrilateral
pentagon
hexagon
heptagon
octagon
nonagon
decagon
polygon
parallelogram
equilateral
plane
square
rectangle
regular polygon
rhombus
trapezoid
4.其它平面图形
arc
line, straight line
line segment
parallel lines
segment of a circle
5.有关立体图形
cube
rectangular solid
regular solid/regular polyhedron
circular cylinder
cone
sphere
solid
6.有关图形上的附属物
altitude
depth
side
circumference, perimeter
radian
surface area
volume
arm
cross section
center of a circle
chord
radius
angle bisector
diagonal
diameter
edge
face of a solid
hypotenuse
included side
leg
median of a triangle
base
opposite
midpoint
endpoint
vertex
secant
tangent
transversal
intercept
segment