┴ 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:
Line segments that have the same length are referred to as "congruent segments." Congruent segments can be visually represented as having identical lengths, regardless of their position or orientation in space. In geometry, this property is often denoted using the symbol "≅" to indicate that two segments are congruent.
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.
ABâ”´CDThe symbol for perpendicular in mathematics is an inverse T
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.
The symbol "!" is called an exclamation mark. It is used in writing to indicate strong feelings, commands, or exclamatory statements.
The trademark symbol should be used when a brand name, logo, or slogan is registered as a trademark to indicate ownership and protection of the intellectual property.
Pierre
Two lines that are not parallel are perpendicular. The symbol is +.
The word "asterisk" is a noun. It refers to a symbol (*) used in writing to mark something as special or to indicate a footnote.
Pierre