The other identifying property is that opposite sides are parallel. One of the two characteristics that make a rhombus unique is that its four sides are equal in length, or congruent. If you have a quadrilateral with two pairs of parallel sides, you do not necessarily have a rhombus you might have a parallelogram, or you could have a rhombus if all four sides are the same length. If you have a quadrilateral with only one pair of parallel sides, you definitely do not have a rhombus (because two of its sides cannot be the same length). Rhombus types Are rhombuses quadrilaterals? It goes above and beyond that to also have four equal-length sides, but it is still a type of parallelogram.Įvery rhombus you see will also be a parallelogram, but not every parallelogram you meet will be a rhombus. Is a rhombus always a parallelogram?Ī rhombus is a special case of a parallelogram, because it fulfills the requirements of a parallelogram: a quadrilateral with two pairs of parallel sides. If you have a rhombus with four equal interior angles, you have a square.Ī square is a special case of a rhombus, because it has four equal-length sides and goes above and beyond that to also have four right angles. Is a square a rhombus?Īll squares are rhombuses, but not all rhombuses are squares. If you struggle to remember its name, think of a square that has been run into by a bus, so it is tilted over ( run into by a bus … rhombus). When it "stands up" so it is symmetrical in appearance, (its diagonals are horizontal and vertical) it is usually called a diamond. What is a rhombusīe careful, though, because a rhombus can appear at any orientation.
Most times, the rhombus you see will be drawn so it has a base - two opposite sides will be horizontal, with the bottom side serving as the shape's base.
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