Level 37 Level 39
Level 38

Mathematics-Unit 7 Line segment and angle


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geometry
几何
axiom
公理
theorem
定理
line
直线
line segment
线段
ray
射线
end point
端点
capital letter
大写字母
lower-case letter
小写字母
extension line
延长线
intercept
相交
distance
距离
angle
size of angle
角的大小
side
vertex
顶点
initial side
始边
terminal side
终边
arrow
箭头
point
triangular ruler
三角板
protractor
量角器
compasses
圆规
angle bisector
角平分线
perpendicular bisector
垂直平分线
right angle
直角
obtuse angle
钝角
acute angle
锐角
straight angle
平角
half turn
平角
round angle
周角
full turn
周角
complementary angle
互为余角
supplementary angle
互为补角
degree
midpoint
中点
revolution/full rotation
周角
reflex angle
优角
true bearing
方向角
compass bearing
方向角
north
east
west
西
south
south-west
西南
south-east
东南
north-west
西北
north-east
东北
intersection point
交点
extend
延长
pair of angles
对角