No, a rectangle cannot have an obtuse angle. By definition, a rectangle is a quadrilateral with four right angles (90-degree angles). An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees. Therefore, in a rectangle, all angles must be right angles, making it impossible for an obtuse angle to exist within a rectangle.
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Angles obtuse in on angle is over90 degrees rectangle has 4 angles at 90 degrees.
It is a right angle
None. Obtuse means >90°; acute means <90°; a right angle = 90°. See Relevant Answers. Or look up "rectangle" in a dictionary; also "obtuse".
An obtuse triangle has an obtuse angle.
An obtuse angle has no complementary angle.