It would not have sides because it would be a straight line. A straight angle is 180 degrees. Anything above that is a "Reflex"
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A 180 Degree angle therefore a straight line.
an acute angle
A single ray.
No? Wouldn't they then be supplementary? Opposite rays make a straight angle/line, and if the exterior sides made the straight angle, the adjacent angles would be supplementary. ...Right?
.the BASIC law of a angle is that a angle must be made by two line ,one line can't make any angle ,a straight angle is make by 2 line not 1 ; you it is only one it is because both line are in the same level . Base or this fact a straight angle is a angle Hope this can solve your question