Definition:Opposite
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Opposite may refer to:
- Geometry:
- Opposite (in a Polygon):
- Opposite (in a Triangle): The side of a triangle which is not one of the sides adjacent to a particular angle is referred to as its opposite. Thus, each angle has an opposite side, and each side has an opposite angle.
- Vertical angles are sometimes referred to as vertically opposite angles.
- Solid geometry:
- Opposite face: In a parallelepiped, the face which is parallel to a given face is the opposite face to that face.
- Abstract Algebra:
- The opposite group to a group $\left({G, \circ}\right)$ is the group $\left({G, *}\right)$ defined such that $\forall a, b \in G: a \circ b = b * a$.
- Opposite Ring
- Opposite Algebra