学术类雅思 (6-7分段) - Geometry

(geometry) a solid or hollow shape with two circular bases at each end and straight parallel sides

圆柱

(geometry) a round object that every point on its surface has the same distance from its center

球体, 球面

(geometry) a closed shape with six straight sides and six angles

六边形

(geometry) a three dimensional shape with a circular base that rises to a single point

圆锥

(mathematics) the ratio of the opposite to the adjacent side of a triangle that has one angle of 90°

切线

a straight line with one endpoint that extends infinitely in the other direction

射线

a type of triangle that has two sides of equal length and two angles of equal measure

等腰三角形

(geometry) a polygon consisting of eight straight sides and eight angles

八边形

in geometry, a pattern or shape that exhibits a twisting or spiraling motion, often characterized by continuous, curved lines forming a rotational or helical design

漩涡, 螺旋

a point where two or more lines, edges, or rays meet to form an angle, or the point at which the sides of a polygon intersect

顶点, 角点

(geometry) a closed plane curve that has two focal points

椭圆

(geometry) a flat shape consisting of three or more straight sides

多边形

a geometric shape with five angles and five straight sides

五边形

(geometry) a line curved on a conical or cylindrical surface, like a spiral staircase in shape

螺旋, 螺旋线

(geometry) a flat polygon with ten straight sides and ten angles

十边形

(geometry) a flat shape consisting of nine straight sides and nine angles

九边形

a seven-sided plane shape consisting of seven line segments or edges that meet at seven interior angles

七边形

a three-dimensional shape similar to a stretched or compressed sphere

椭球, 椭圆体

a three-dimensional geometric shape with six rectangular faces, resembling a box or a rectangular prism

长方体, 矩形棱柱

(geometry) a round 3D shape like a ball that is slightly flattened at the top and bottom points

扁球体, 椭球体

(geometry) a solid figure with flat sides and two parallel ends of the same size and shape

棱镜

a solid shape made of flat sides that fit together along their edges

多面体

a three-sided polygon

三角形, 三角

(geometry) a flat star-shaped figure with six points that can be formed by making equilateral triangles on each side of a regular hexagon

六角星, 六角形星

an angle that measures either less or more that 90 degrees

斜角, 非直角

an angle that measures greater than 180 degrees but less than 360 degrees

反射角, 大于180度的角

a straight line from one side of a round object, particularly a circle, passing through the center and joining the other side

直径

(geometry) the length of the external boundary of a curved shape, especially a circle

周长

the length of a straight line drawn from the center of a circle to any point on its outer boundary

半径