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Level 12

三角形和角


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triangle
三角形
congruent
全等的
right triangle
直角三角形
equilateral triangle
等边三角形
isosceles triangle
等腰三角形
altitude
hypotenuse
斜边
median of a triangle
三角形的中线
degree
角度
vertex angle
顶角
vertices angle
顶角
right angle
直角
acute angle
锐角
obtuse angle
钝角
straight angle
平角
angle bisector
角平分线
diagonal
对角线