n.几何学，几何形状，几何结构，几何图形，几何(学)

原形：geometry复数：geometries

She's well studied in geometry.
她在几何学方面有丰富的知识。
We feel that geometry is a difficult subject.
我们认为几何是一门难学的课程。
He can also learn geometry by assembling a bicycle.
他还可以通过安装自行车学习几何。
We have tinkered with the geometry of the car's nose.
我们对车头的外观进行了改进。
A triangle has three sides and three angles.
一个三角形有三条边和三个角。
The Pythagorean theorem states that in a right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.
勾股定理指出，在直角三角形中，斜边的平方等于另外两条边的平方和。
A circle is a set of all points in a plane that are equidistant from a fixed point, called the center.
圆是一组在平面上与固定点（称为圆心）等距离的所有点。
A sphere is a perfectly round geometrical object with all points on its surface equidistant from the center.
球体是一个所有表面点到中心等距的完美圆形几何体。
The angle bisector divides an angle into two equal parts.
角平分线将一个角分成两个相等的部分。
A polygon is a plane figure with straight sides and angles, such as a triangle or a rectangle.
多边形是具有直线边和角度的平面图形，如三角形或矩形。
A regular hexagon has six equal sides and six equal angles.
正六边形有六个相等的边和六个相等的角。
The volume of a cube is calculated by multiplying the length of one side by itself twice.
立方体的体积通过边长的两倍自乘来计算。
The surface area of a cylinder is the sum of the areas of its top and bottom circles plus the area of its lateral surface.
圆柱的表面积是其顶部和底部圆的面积之和加上侧面的面积。
A solid of revolution is formed when a two-dimensional shape is rotated around an axis, creating a three-dimensional object.
旋转体是由二维形状绕轴旋转形成的三维物体。