Can a trapezoid have four obtuse angles? Explain?

I dont think it can be true that a trapizoid has 4 obtuse angles because it would not be a trapizoid, a trapiziod needs at least 2 acute angles to be wat it is that is why a trapizoid can not be all obtuse angles.

No.  A trapezoid is a quadrilateral, and therefore must have an interior angle sum of 360 degrees.
Any obtuse angles must be offset by acute ones, unless they’re all right angles/it’s a rectangle.
91 + 91 + 91 + 91 = 364 > 360.


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