是梯形的用英语怎么说

梯形在英语中是指trapezoid。这个词来源于拉丁语trapezium，其本意是指四边形，但在数学中已经特指梯形。例如：
The trapezoid is a quadrilateral with at least one pair of parallel sides.
(梯形是一种四边形，至少有一对平行边。)
The area of a trapezoid can be calculated by multiplying its height by the average of its bases.
(梯形的面积可以通过将高乘以两个底面积之和除以二来计算。)