Reflex angle
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An obtuse angle is not an exact size, but rather a term used to describe a range of sizes.An obtuse angle is larger than 90 degrees (larger than a right angle) but less than 180 degrees (less than a straight angle).More than 90 degrees but less than 180 degrees.An obtuse angle must be more than 90 degrees and less than 180 degrees.
Each interior angle of a regular pentagon is 108 degrees ie all five of them are larger than a right angle. If the pentagon is convex, at least four of the angles must be greater than 90 degrees.
An angle that measures more than 90 degrees but less than 180 degrees is called an "obtuse" angle. Note Angles less than 90 degrees are called "acute" angles. An angle that is exactly 90 degrees is called a "right" angle. Angles that are more than 90 degrees but less than 180 degrees are call "obtuse" angles. An angle that is exactly 180 degrees is called a "straight line". Angles that are more than 180 degrees and less than 360 degrees are called "reflex" angles.
An angle that measures less than 90 degrees is an acuteangle.Note:Angles less than 90 degrees are called "acute" angles.An angle that is exactly 90 degrees is called a "right" angle.Angles that are more than 90 degrees but less than 180 degrees are call "obtuse" angles.An angle that is exactly 180 degrees is called a "straight line".Angles that are more than 180 degrees and less than 360 degrees are called "reflex" angles.is called an acute angle. An obtuse angle measure in degrees is more than 90.
It's an Obtuse angle because, Its higher than 90Degrees.