1.所有的角 alternate angle內(nèi)錯(cuò)角?corresponding angle同位角?vertical angle對(duì)頂角?central angle 圓心角?interior angle內(nèi)角?exterior angle外角 ?supplementaryangles補(bǔ)角?complement aryangle余角?adjacent angle鄰角 ?acuteangle銳角?obtuse angle鈍角right angle直角 round angle周角 ?straightangle平角?included angle夾角
2.所有的三角形
equilateral triangle 等邊三角形?scalene triangle不等邊三角形?isoscelestriangle等腰三角形?right triangle直角三角形 ?oblique斜三角形?inscribed triangle內(nèi)接三角形
3.有關(guān)收斂的平面圖形，除三角形外?
semicircle半圓? concentric circles同心圓?quadrilateral四邊形?pentagon五邊形?hexagon六邊形?heptagon 七邊形?octagon八邊形?nonagon九邊形?decagon十邊形?polygon多邊形?parallelogram平行四邊形?equilateral等邊形?plane平面?square正方形，平方?rectangle長方形?regular polygon正多邊形?rhombus菱形?trapezoid梯形
4.其它平面圖形
arc弧?line,straight line直線?line segment線段?parallel lines平行線?segment of a circle弧形
5.有關(guān)立體圖形
cube立方體，立方數(shù)?rectangular solid長方體?regular solid/regular polyhedron正多面體 circular cylinder圓柱體cone圓錐?sphere球體?solid立體的
6.有關(guān)圖形上的附屬物
altitude高?depth深度?side邊長?circumference,perimeter周長?radian弧度?surface area 表面積?volume體積arm直角三角形的股?cros ssection橫截面?center ofacircle圓心 chord弦?radius半徑?anglebisector角平分線?diagonal對(duì)角線?diameter直徑?edge棱 face of a solid立體的面?hypotenuse斜邊?includedside夾邊?leg三角形的直角邊 medianofatriangle三角形的中線?base底邊，底數(shù)(e.g.2的5次方，2就是底數(shù))opposite直角三角形中的對(duì)邊?midpoint中點(diǎn)?endpoint端點(diǎn)?vertex(復(fù)數(shù)形式vertices)頂點(diǎn)?tangent切線的?transversal截線?intercept截距
7.有關(guān)坐標(biāo)?
coordinate system 坐標(biāo)系?rectangularcoordinate直角坐標(biāo)系?origin原點(diǎn)?abscissa橫坐標(biāo) ordinate縱坐標(biāo)?numberline數(shù)軸?quadrant象限?slope斜率?complex plane復(fù)平面
8.其它
plane geometry平面幾何?trigonometry三角學(xué)?bisect平分?circumscribe外切?inscribe內(nèi)切 intersect相交?perpendicular垂直?pythagorean theorem勾股定理?congruent全等的 multilateral多邊的?