That symbol is called the radical.
The symbol that you describe seems to be the greek letter Phi. It is normally used to indicate a variable that is an angle, just as x is used to indicate a variable that is a numeric quantity.
It can be though it is more often used to denote a variable.
It is important to know the terms used while learning math. A non included angle is when the sides of the shape do not make the angle.
An angle bracket is either of a set of brackets, ? and ?, used to enclose text, or one of the inequality signs, < or >, when used as brackets, such as in HTML.
The symbol commonly used to denote entropy is S.
G
That symbol is called the radical.
Any symbol can be used to denote a set of integers. The set of all integers is denoted by Z, and the set of natural numbers by N.
A protractor is used to measure an angle.
A protractor can be used to measure an angle.
Feet are usually written as ', and the symbol is also used to denote arcminutes. Prime units of any type will also be marked in such a manner, as are minutes of angle and time.
The shape or symbol used to denote infinity is a 8 on its side: "∞"
The shape or symbol used to denote infinity is a 8 on its side: "∞"
The instrument used to measure a angle is called a protractor!
If the line is horizontal, it is the greek letter theta, often used to label an angle. If the line is diagonal, it is used to denote the diagonal of a circle. As the greek letter phi it is used to denote an empty set and also used to label an angle.
The shape or symbol used to denote infinity is a 8 on its side: "∞"