We can use the definition of a rhombus and the definition of other shapes to determine what other shapes classify as a rhombus. A square is a quadrilateral with all sides equal in length and all interior angles right angles. Create your account. To me, both A and B are squares (and also rhombuses since they have the 4 equal sides). The perimeter of a rhombus is 80 centimeters. In this chapter, we will explain the properties of a rhombus and why it's quite a cool quadrilateral. To construct this shape, you can use the centers and points on three overlapping circles to determine the rhombus' vertices and then connect these vertices to … For a non-isosolese trapezoid, you just need two sides to be parallel, but the non-parallel sides are not the same length. Which is not a quadrilateral? Additionally, a rhombus does not have sides that are perpendicular to each other, unlike to a square. Mathematics, 21.06.2019 19:00. In a quadrilateral ABCD ,which is not a trapezium.It is known that