The interior angles of a trapezium = 360°
The British definition of a trapezium is a quadrilateral with one pair of parallel sides.
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A trapezium has 2 obtuse and 2 acute angles.
A trapezium has 4 internal angles and 4 external ones, just like any other quadrilateral.
Well, honey, a trapezium can have 0, 1, or 2 obtuse angles. It all depends on the specific shape of the trapezium. So, you might want to whip out that protractor and start measuring those angles if you're curious.
The internal angles of any quadrilateral add to 360 degrees.
Yes, there are four angles. And the sum of its angles is 180 degrees.