trapezoid, parallelogram, rhombus, rectangle, square, plain quadrilateral
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You must be looking at a Venn diagram of different kinds of quadrilaterals. Although I can't see your diagram, the most likely thing to look for is a trapezoid, or maybe a kite. Of course, there are many quadrilaterals with nothing special about them, they're just quadrilaterals.
It isn't possible to predict what any of the angles is individually, and different quadrilaterals can have all kinds of different angles inside them. But the one thing that we do know: All four of the angles inside any quadrilateral must add up to 360 degrees.
There are many different quadrilaterals such as squares, trapezoids, rectangles, rhombus and parallelogram.
There are 16 non-congruent quadrilaterals on a 3x3 geoboard.
A trapezoid only has one pair of opposite parallel sides of different lengths but like all other quadrilaterals it has 4 sides.