Question

Select all that apply. Which of the following are not quadrantal angles? 90° 180° 210° 260° 270°

Answer 1

210 and 260 degrees are not quadrantal angles

Explanation:

quadrantal angles are angles that directly fall on the x or y axis. They're also multiples of 90 degrees. Quadrantal angles are 0, 90, 180, 270 degrees. hope this helps!

Answer 2

`210^(o) and 260^(o)` are not quadrantal angles.

A quadrantal angle is formed by two lines which lie on x-axis and y-axis.

For this reason, angles like;

`0^(o),90^(o),180^(o),270^(o) and also -90^(o),-180^(o),-270^(o)` are quadrantal.

However, on the other hand,

`210^(o) and 260^(o)` are not quadrantal because these angles are not formed by lines lying along x-axis and y-axis.