┴ that one. Sometimes it'll have a small square to indicate a right angle.
For two items (Planes, lines, line segments, ect.) to be perpendicular that means that they meet at a 90 degree angle. Perpendicularity is denoted by the ⊥ symbol. For example line AB ⊥ line CD would mean that the line AB would be perpendicular to the line CD.
Two lines that are not parallel are perpendicular. The symbol is +.
It is a vertical line touching a horizontal line
On the keyboard you press alt and 193. Hold down alt while typing i the numbers, then release all of them and you should have it. ┴ ta-da!
As the ratio of two lengths, the radian is a "pure number" that needs no unit symbol, and in mathematical writing the symbol "rad" is almost always omitted. In the absence of any symbol radians are assumed, and when degrees are meant the symbol ° is used.
An inverted "T"
With this symbol:
For two items (Planes, lines, line segments, ect.) to be perpendicular that means that they meet at a 90 degree angle. Perpendicularity is denoted by the ⊥ symbol. For example line AB ⊥ line CD would mean that the line AB would be perpendicular to the line CD.
Drawing two tiny parallel lines over the segment will indicate that it is a congruent segment. The little arc symbol can also be drawn over the segment or the angles.
ABâ”´CDThe symbol for perpendicular in mathematics is an inverse T
it indicate where and what to drop in
Pierre
What does this symbol indicate on a weather map? low pressure
Two lines that are not parallel are perpendicular. The symbol is +.
It is the symbol for 'perpendicular'.
Pierre
The ditto symbol (") is used in writing to indicate that the same words as above are repeated. It helps to avoid redundancy by showing that the information is the same as what was previously stated.