Always true. A rhombus is a parallelogram with 4 equal sides. In plane Euclidean geometry, a rhombus (plural rhombi or rhombuses) is a quadrilateral whose four sides all have the same length. 4. ... the polygon is said to be equilateral. In Euclidean geometry, a rhombus ( ) (plural rhombi or rhombuses) is a simple (non-self-intersecting) quadrilateral whose four sides all have the same length. Diagonals bisect vertex angles. 3. A rhombus is always equilateral. A square is a special case of equilateral rhombus in which all the angles are equal to \(90^{\circ}\). A rhombus is a special case of a parallelogram, and it is a four-sided quadrilateral. Rhombus. Equilateral polygons (i.e. A rhombus is a four-sided shape where all sides have equal length (marked "s"). A quadrilateral can be equiangular but not equilateral (a rectangle) or equilateral but not equiangular (a rhombus). 2. Opposite angles of a rhombus are equal, so they only add up to 180 degrees if they are each 90 degrees. A square is a type of rhombus, but with one distinction: the corners must be 90-degree angles. Also called a rhombus, these figures are either a square, in which case all four angles also are equal, or a non-square rhombus. Angles. 3. Supplementary means that they add up to 180 degrees. 2. Only if the rectangle is a square. In other words they "bisect" (cut in half) each other at right angles. All 4 sides are congruent. The Rhombus. Always true. There are several formulas for the rhombus that have to do with its: Sides (click for more detail). A rhombus is not always equiangular, but is always equilateral. Another name is equilateral quadrilateral, since equilateral means that all of its sides are equal in length. An equilateral parallelogram is known as a rhombus. Moreover, all the sides of a rhombus are equal in length, and the diagonals bisect each other at right angles. No, an equilateral triangle is not a rhombus. Sometimes true. A square is a rectangle with four congruent sides. Another name is equilateral quadrilateral, since equilateral means that all of its sides are equal in length.The rhombus is often called a diamond, after the diamonds suit in playing cards which resembles the projection of an octahedral diamond, or a … For example, a rhombus has all sides the same length but is not a regular polygon. It need not be equiangular, but if it is, then most people look at it and call it a "square". A rectangle is not always equilateral, although it is always equiangular. Another interesting thing is that the diagonals (dashed lines) meet in the middle at a right angle. In a rhombus, opposite sides are parallel and the opposite angles are equal. If they are not in the same plane, then they are not parallel. all sides are the same length) are sometimes regular - not always. To Rudy Triana, A rhombus is a four-sided parallelogram with all sides equal and opposite sides parallel to each other. In this case, the rhombus is a square. A rhombus is a type of parallelogram, and what distinguishes its shape is that all four of its sides are congruent.. An equilateral triangle is a 3-sided polygon while a rhombus is a 4-sided polygon. A rhombus is equilateral. A square, however, is both. A square is both equilateral and equiangular. All sides of a square are the same length (equilateral) and all its angles have the same measure (equiangular). Also opposite sides are parallel and opposite angles are equal. For example, all of its sides are congruent, and it contains diagonals that are perpendicular bisectors and that bisect the angles of the rhombus. Sometimes true. Is an equilateral triangle also a rhombus? For the question about perpendicular lines, you don't say if both lines are in the same plane. The rhombus is also called a diamond or rhombus diamond. Use the words parallelogram, rectangle, rhombus, or square. 1.