Question

The terminal arm is in II quadrant, what are the measures of possible angles ?

• A. In between ${90}^{\circ }$ and ${180}^{\circ }$ or $-{270}^{\circ }$ and $-{180}^{\circ }$
• B. In between ${180}^{\circ }$ and ${270}^{\circ }$ or $-{90}^{\circ }$ and $-{180}^{\circ }$
• C. In between $-{90}^{\circ }$ and $0^{\circ }$ or ${270}^{\circ }$ and ${360}^{\circ }$
• D. None of these

Answer 1

The correct option is A In between ${90}^{\circ }$ and ${180}^{\circ }$ or $-{270}^{\circ }$ and $-{180}^{\circ }$

The terminal arm is in $2^{nd}$ Quadrant.

For clock wise Rotation The Terminal arm covers an angle of $-{180}^{\circ }$ to $-{270}^{\circ }$

For Anti-clock wise Rotation The Terminal arm covers an angle of ${90}^{\circ }$ to ${180}^{\circ }$