A straight angle (180 degrees) makes a perfectly straight line. Any degree below 180 degrees (0-179 degrees) is NOT a straight angle NOR a straight line.
straight angle = 180 degrees
straight angle = straight line
180 degrees
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line
An angle is formed by two rays that have the same endpoint. Tell why it makes sense that a straight angle forms a straight line.
90 degrees
A straight angle is 180 degrees.
A straight angle is an angle.