Question

In which quadrant does the terminal side of the angle ${420}^0$ lie?

• A. quadrant I
• B. quadrant II
• C. quadrant III
• D. quadrant IV

Answer 1

Answer: (A)

quadrant I

Quadrant I: $0˚$ to $90˚$

Quadrant II: $90˚$ to $180˚$

Quadrant III: $180˚$ to $270˚$

Quadrant IV: $270˚$ to $360˚$

Here, the angle is $420˚$ which lies on the quadrant I because the degree is more than $360˚$ and less than $450˚\equiv 90˚$