n.四边形
adj.四边（形）的

The garden's fence forms a quadrilateral with four equal sides.
这个花园的围栏形成了一个四边形，四条边都相等。
In a rectangle, all angles of a quadrilateral are right angles.
在长方形中，四边形的所有角度都是直角。
The diagonals of a rhombus bisect each other, forming two congruent triangles within the quadrilateral.
菱形的对角线互相平分，形成两个在四边形内部全等的三角形。
A parallelogram is a special type of quadrilateral where opposite sides are parallel.
平行四边形是一种特殊的四边形，其对边是平行的。
If the sum of the interior angles of a quadrilateral measures 360 degrees, it's a cyclic quadrilateral, meaning its vertices can be circumscribed by a circle.
如果一个四边形内角之和为360度，则它是一个外切四边形，意味着它的顶点可以被一个圆所包围。
In geometry, a square is a regular quadrilateral with four right angles and equal sides.
在几何学中，正方形是一种具有四个直角且四条边相等的规则四边形。
An irregular quadrilateral has sides and angles that do not follow any specific pattern or proportion.
不规则四边形的边和角没有遵循任何特定模式或比例。
A trapezoid is a quadrilateral with at least one pair of parallel sides.
梯形是一种至少有一对平行边的四边形。
When the sum of squares of the lengths of the two pairs of opposite sides in a quadrilateral equals, we have a Pythagorean quadrilateral.
当一个四边形两对相对边长度平方和相等时，我们称之为毕达哥拉斯四边形。
In a kite, two disjoint pairs of adjacent sides are equal in length, making it a particular kind of quadrilateral.
飞镖形（风筝形）中，两组不相邻的两条边长相等，使其成为一种特定类型的四边形。