Angle and Line Symbols
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Angle and Line Symbols
This is a list of the most common angle and line symbols:
| Symbol | Definition | Example |
|---|---|---|
| \(\triangle\) | triangle | \(\triangle ABC \) |
| \(\angle\) | angle | \(\angle ABC = 60^\circ\) |
| \(\measuredangle\) | measured angle | \(\angle ABC \;\measuredangle \;60^\circ\) |
| \(\sphericalangle\) | spherical angle | \(\angle ABC \;\sphericalangle\; 60^\circ\) |
| \(c\) | radian | \(360^\circ=2\pi^c\) |
| \(g\) | grad | \(360^\circ=400^g\) |
| \(\circ\) | degree | \(360^\circ\) |
| \(\pi\) | Pi, \(\pi = 3.141592654... \) | \(C = \pi \cdot d = 2 \cdot \pi \cdot r\) |
| \(\overleftrightarrow { }\) | infinite line distance | \(\overleftrightarrow {AB}\) |
| \(\overline { }\) | line segment from A to B | \(\overline {AB}\) |
| \(\overrightarrow { }\) | start line at point A | \(\overrightarrow {AB}\) |
| \(\overset{\frown} { }\) | arc from A to B | \(\overset{\frown} {AB}\) |
| \(|\;\;|\) | distance between A and B | \(|A-B| = 9\) |
| \(\parallel\) | parallel to | \(\overline {AB} \parallel \overline {XY} \) |
| \(\nparallel\) | not parallel to | \(\overline {AB} \nparallel \overline {XY} \) |
| \(\perp\) | perpendicular lines | \(\overline {AB} \perp \overline {XY} \) |
| \(\bigcirc\) | circle | |
| \(\odot\) | center of circle | \(\odot A\) |