pentagon
加入词篮the Pentagon
pentagram
perimeter
sine
cosine
cos
sinusoid
tangent
cotangent
circle
radius
diameter
center
chord
round
loop
circular
circulation
circuit
semicircle
dot
compass
sector
arc
camber
tangent line
tangency
contingency
solid
cube
cuboid
cylinder
cone
sphere
square
rectangle
parallelogram
rhombus
trapezoid
oval
spiral
perimeter
circumference
side
surface area
superficies
surface
calculation
calculator
calculus
count
recount
curve
parabola
vertex
root
square root
cube root
rooting
compasses
dividers
calliper
protractor
congruence
congruity
conformity
cone
solid
conjugate
conjugation
conjugate angles
conjugate point
complexity
complex
complication
approximation
asymmetry
symmetry
axis of symmetry
axis
vertical axis
horizontal axis
quadrant
axiom
theorem
ratiocination
grammar
grammarian
declarative sentence
declaration
indicative
imperative sentence
interrogative sentence
interrogative
question tag
interrogative adverb
exclamatory sentence
interjection
exclamation
