## How do you find the six trigonometric functions of Quadrantal angles?

The trigonometric ratios of quadrantal angles are given below.

1. For θ = 00 A point (x, y) = (1, 0) lies on the terminal side of the angle θ.
2. For θ = 900 A point (x, y) = (0, 1) lies on the terminal side of angle θ.
3. For θ = 1800 A point (x, y) = (-1, 0) lies on the terminal side of angle θ.
4. For θ = 2700

Which of the following is a Quadrantal angle?

Quadrantal angles include 0∘, ±90∘, ±180∘, ±270∘, ±360∘ etc. Some of these angles have been illustrated in the figures below. Note that the terminal side of these angles lies either on x-axis or on y-axis.

Is 270 degrees a Quadrantal angle?

Quadrants & Quadrantal Angles Angles between 0∘ and 90∘ are in the first quadrant. Angles between 90∘ and 180∘ are in the second quadrant. Angles between 180∘ and 270∘ are in the third quadrant. Angles between 270∘ and 360∘ are in the fourth quadrant.

### Is 45 degrees a Quadrantal angle?

The angle is in the first quadrant.

Which of the following is Quadrantal angle?

An angle in standard position is called a quadrantal angle if its terminal side lies on x-axis or y-axis. Quadrantal angles include 0∘, ±90∘, ±180∘, ±270∘, ±360∘ etc. Some of these angles have been illustrated in the figures below. Note that the terminal side of these angles lies either on x-axis or on y-axis.