no... a straight line is a 180 degrees half circle.
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If the obtuse angle on a straight line is 148 degrees, then the acute angle would be the supplementary angle to the obtuse angle on the same line. The sum of the measures of two supplementary angles is always 180 degrees, so the acute angle would be 180 - 148 = 32 degrees.
It is 10 degrees more than a straight line so its a reflex angle.
An obtuse angle is any angle that is between 91 degrees and 179 degrees. It can be added to a supplementary acute angle to form a straight line.
An obtuse angle is an angle that is larger that 90 degrees but smaller than a straight angle (180 degrees).
It is an obtuse angle