A
parallelogram is a four-sided geometric shape with opposite sides parallel.
The area of the
parallelogram can be calculated by multiplying the base by the height.
The rectangle is a special type of
parallelogram where all angles are right angles.
In a rhombus, all sides are equal, making it a special kind of
parallelogram.
Parallelograms can be used to create trapezoids when one pair of parallel sides is shorter than the other.
The diagonals of a
parallelogram bisect each other.
You can prove a quadrilateral is a
parallelogram by showing that both pairs of opposite sides are parallel.
The slope of the opposite sides in a
parallelogram are always equal.
A
parallelogram can be transformed into a rectangle by adjusting the angles without changing its sides.
The perimeter of a
parallelogram is found by adding the lengths of all four sides.
平行四边形是一种四边形，其对边是平行的。
平行四边形的面积可以通过底和高的乘积来计算。
长方形是所有角都是直角的特殊平行四边形。
在菱形中，所有边都相等，因此它是一种特殊的平行四边形。
当一对平行边较短时，平行四边形可以形成梯形。
平行四边形的对角线互相平分。
通过证明两对对边平行，可以确定一个四边形为平行四边形。
平行四边形的对边斜率总是相等的。
通过调整角度，平行四边形可以转换为矩形，而边长保持不变。
平行四边形的周长是所有四条边长度之和。
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