**Standard Position**of an

**Angle**- Initial Side - Terminal Side. An

**angle**is in

**standard position**in the coordinate plane if its vertex is located at the origin and one ray is on the positive x-axis. The ray on the x-axis is called the initial side and the other ray is called the terminal side.

Just so, what is the terminal side of an angle in standard position?

In trigonometry an angle is usually drawn in what is called the "standard position" as shown on the

**right**. In this position, the vertex (B) of the angle is on the origin, with a fixed side lying at 3 o'clock along the positive x axis.What is the angle of trigonometry?

**Angle**(

**Trigonometry**) Definition: An

**angle**which has its vertex at the origin, and one side lying on the positive x-axis. It can have a measure which positive or negative and can be greater than 360°. Try this: Adjust the

**angle**below by dragging point A and see how the

**angle**ABC behaves.

What is a positive angle?

Negative

**Angles**. Negative**angles**are a way of measuring an**angle**from a different direction. A**positive angle**is created by rotating counter-clockwise around the origin of a coordinate system, starting at the x-axis (the horizontal axis) and proceeding through the quadrants in the order I, II, III, IV.