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.
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180
An obtuse angle is an angle measuring between 90 and 180 degrees
Any angle between 90 and 180 degrees is an obtuse angle. Therefore 157 degrees is an obtuse angle.
It is greater than 90 degrees and less than 180 degrees so it is an obtuse angle.
An obtuse angle
An obtuse angle. Any angle greater than 90 but less than 180 degrees is an obtuse angle.