They can vary in size. In its most general form, a trapezoid (or trapezium, outside of North America) is a four-sided figure with exactly one pair of parallel sides. The two parallel sides do not have to be the same length; therefore a trapezoid will have either:
Case (2) is a special type of Case (1).
Regardless of its configuration, the interior angles of a trapezoid always add up to 360 degrees
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There are four angles in a trapezoid. These four angles will also add up to 360 degrees.
The 4 interior angles of a trapezoid add up to 360 degrees and the sizes of the individual angles depends on the lengths of the parallel sides
It has 4 angles that add up to 360 degrees
The 4 interior angles of a trapezoid add up to 360 degrees
There are four angles in a trapezoid since a trapezoid is a quadrilateral. A quadrilateral has four sides and four angles.