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==Diangle lengths== |
==Diangle lengths== |
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− | :<math>p=a\sqrt{2(1-\cos(\theta))}</math> |
+ | :<math>\begin{align}p&=a\sqrt{2\bigl(1-\cos(\theta)\bigr)}\\q&=a\sqrt{2\bigl(1+\cos(\theta)\bigr)}\end{align}</math> |
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− | :<math>q=a\sqrt{2(1+\cos(\theta))}</math> |
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==[[Area]]== |
==[[Area]]== |
Latest revision as of 18:04, 12 December 2017
In geometry, a rhombus is a quadrilateral whose four sides are of equal length. It is a special case of the parallelogram; a rhombus with right angles is a square.
Rhombi hold the following properties:
- All four sides are of equal length (congruent)
- Opposite sides are parallel to one another
- Parallelogram
- Opposite angles are of equal measure (congruent)
- Adjacent angles are supplementary to one another
- Diagonals bisect the angles of the corners they connect
- Diagonals bisect one another
- Diagonals intersect at right angles