复利 compound interest
单利 simple interest
折旧 depreciation
折扣 discount
锐角 acute angle
补角 supplementray angle
内错角 alternate angle
平行四边形 parallelogram
梯形 trapezoid
角平分线 angle bisector
弦 chord
顺时针 clockwise
多边形 polygon
等边的 equilateral
概率probability
组合combination
排列permutation
直角坐标系 rectangular coordinate
横坐标 abscissa
纵坐标 ordinate
基数 cardinal
座标 coordinate
方程 equation
代数 algebra
代数式 algebraic expression
分式 algebraic fraction
分子 numerator
绝对值absolute value
常数 constant
近似 approximate
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