qingqing829
square kilometersradiusarea 其他相关：有关数学运算add，plus加�subtract减�difference差��multiply,times乘�product积�divide除�divisible可被整除的�dividedevenly被整除�dividend被除数，红利�divisor因子，除数�quotient商�remainder余数��factorial阶乘�power乘方�radicalsign,rootsign根号�roundto四舍五入�tothenearest四舍五入有关分数和小数proper fraction真分数�improper fraction假分数�mixed number带分数�vulgar fraction，common fraction普通分数�simple fraction简分数���numerator分子�denominator分母�(least)common denominator（最小）公分母�quarter四分之一�decimal fraction纯小数�infinite decimal无穷小数�recurring decimal循环小数�round off四舍五入�几何部分�acute angle锐角�obtuse angle钝角�right angle直角�round angle周角�straight angle平角�equilateral triangle等边三角形�isosceles triangle等腰三角形�right triangle直角三角形quadrilateral四边形parallelogram平行四边形�equilateral等边形�plane平面�square正方形，平方�rectangle长方形�regular polygon正多边形�rhombus菱形�trapezoid梯形��line,straight line直线�line segment线段�parallel lines平行线
大料酱VS小麋鹿
直线line, 线段line segment ,射线half-line, An unlimited line, half-line, or line segment serving to orient a space or a geometric object, especially a line about which the object is symmetric. 轴用于给空间或几何体定位的无限直线、射线或线段，特别是关于对称物体的线
优质英语培训问答知识库
