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The Greek letters you are most likely to see for angles (in geometry and trigonometry) are α (alpha), β (beta), γ (gamma), δ (delta), and θ (theta). And of course you'll be using π (pi) all the time.
Greek alphabet letters are used as math and science symbols.
Greek letters are used in mathematics, science, engineering, and other areas where mathematical notation is used as symbols for constants, special functions, and also conventionally for variables representing certain quantities. In these contexts, the capital letters and the small letters represent distinct and unrelated entities.
It is used to represent the angle of rotation, angles, angular phase displacement, reluctance, thermal resistance, and transit angle. Iota (Ι)
They also use the same (Greek) letters. For example, for angles, it is very common to use $\phi$ or $\theta$ and in equations, they use $\chi$ and $\psi$. Similarly, they use the Greek alphabet (capital letters) Α, Β, $\Gamma$, $\Delta$, etc., for points in Geometry, etc cetera.
Greek letters are often used as variables for the measure of an angle. Table \(\PageIndex{1}\) is a list of Greek letters commonly used to represent angles, and a sample angle is shown in Figure \(\PageIndex{3}\) .
An angle is a geometric figure formed by two rays (the sides of the angle) sharing a common endpoint (the vertex of the angle). To indicate an angle in mathematical notation, symbols are used for convenience and clarity. The most common symbol for an angle is the Greek letter theta (θ), but other Greek letters like alpha (α), beta (β), and ...
Angles can be named using a point on each ray and the vertex, such as angle DEF, or in symbolic form \(∠DEF.\) Greek letters are often used as variables for the measure of an angle. In the table below is a list of Greek letters commonly used to represent angles.
Greek letters are often used as variables for the measure of an angle. The table below is a list of Greek letters commonly used to represent angles, and a sample angle is shown in Figure 2.