- Opposite angles are two angles that don't share a side.
A quadrilateral has two pairs of them.
- Adjacent angles are angles that share one side.
A quadrilateral has four pairs of them.
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It is not possible for a quadrilateral in Euclidean plane geometry to have no equal angles and still have its opposite sides parallel.It's possible for a quadrilateral to have no equal angles and two of its sides parallel (opposite ones, obviously; adjacent sides can't possibly be parallel). That would be a trapezoid.
opposite angles in which type of quadrilateral?
If a set of equal sides are adjacent, then the quadrilateral is a "kite" shape. If a set of equal sides are opposite, then the quadrilateral is a parallelogram.
Yes, the opposite angles in a regular quadrilateral are equal.
A rhombus is a simple quadrilateral with all its sides of equal length. As a result,its opposite sides are parallel,its opposite angles are equal,its adjacent angles are supplementary, andits diagonals bisect each other at right angles.