what is the terminal side of an angle

An angle is a measure of the rotation of a ray about its initial point. The original ray is called the initial side and the final position of the ray after its rotation is called the terminal side of that angle. Consider 45°.

What terminal side means?

Definition of terminal side

: a straight line that has been rotated around a point on another line to form an angle measured in a clockwise or counterclockwise direction — compare initial side.

What is terminal side of triangle?

Standard Position: An angle is in standard position 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.

What is terminal and initial side?

The initial side is where the angle starts and the terminal side is the ray where the measurement of the angle stops, therefore the terminal side defines the angle and if the vertex is at the origin (0, 0) then the angle will be in Standard Position.

What is the terminal side of 90 degrees?

The terminal side of the 90° angle and the x-axis form a 90° angle. The reference angle is the same as the original angle in this case. In fact, any angle from 0° to 90° is the same as its reference angle. What is the reference angle for 100°?

What is initial side of an angle?

Initial side of an angle – trigonometry

One side of the angle is always fixed along the positive x-axis – that is, going to the right along the axis in the 3 o’clock direction (line BC). This is called the initial side of the angle. The other side of the angle is called the terminal side.

What are terminal and Coterminal angles?

The initial side of an angle is the ray where the measurement of an angle starts. The terminal side of an angle is the ray where the measurement of an angle ends. Co-terminal angles are angles which when drawn at standard position share a terminal side. For example, 30°, -330°, 390° are all coterminal.

What is the terminal position?

Terminal position means the region at the tip (top)and the region just below it is called subterminal.

What is the terminal point of 270?

A Quadrantal Angle is any angle in standard position with its terminal side on the x-axis or the y-axis. The terminal side of the angle is on the y-axis. Hence, that angle 270∘ is a Quadrantal Angle. Hope it helps.