1.sum和,difference差,product积 ,quotient商
2.surface area 表面积,volume体积,the length of the side边长,lateral area 侧面积,altitude高
3.rectangle长方形,square正方形,circular cylinder圆柱体,cone圆锥,triangle三角形,polygon多边形,rectangular solid长方体,cube立方体,circle圆
4.add,plus加 ,subtract减 ,multiply,times乘 ,divide除