Definition:Straight Angle
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Definition
A straight angle is defined to be the angle formed by the two parts of a straight line from a point on that line.
Measurement of Straight Angle
The measurement of a straight angle is $\dfrac{360^\circ} 2 = 180^\circ$ or $\dfrac {2 \pi} 2 = \pi$.
Sources
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): Entry: straight angle (flat angle)
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): Entry: straight angle (flat angle)