英语翻译amanufacturerwantedtoputoutalineofcuttingboardsintheshapeofaparallelogram.hisdesignersenthimasketchofaboardplottedonthecoordinateplane.theverticesoftheboardhadcoordinates(1,-1),(2,1),(4,2)and(3,0).sh

Question

英语翻译
a manufacturer wanted to put out a line of cutting boards in the shape of a parallelogram.his designer sent him a sketch of a board plotted on the coordinate plane.the vertices of the board had coordinates (1,-1) ,(2,1),(4,2) and (3,0).show that this board is a parallelogram.(show that the opposite sides are parallel)

Answer 1

制造商想在切板上画个平行四边形.设计师给他送去一张样板,上面标注了坐标值.四边形的4个顶点坐标分别是(1,-1) ,(2,1),(4,2) 和 (3,0),表示该四边形为平行四边形（对边平行）.