Question

What is the range of reflex angle?

• A. Greater than zero but less than ${90}^o$
• B. Greater than ${90}^o$ but less than ${180}^o$
• C. Greater than ${180}^o$ but less than ${360}^o$
• D. Equal to ${360}^o$

Answer 1

The correct option is C Greater than ${180}^o$ but less than ${360}^o$

Acute angle is the angle which is greater than $0^o$ and less than ${90}^o$.

Obtuse angle is the angle which is greater than ${90}^o$ and less than ${180}^o$.

Right angle is the angle which is equal to ${90}^o$.

Now, by definition, reflex angle is the angle which is greater than ${180}^o$ and less than ${360}^o$.

That is, angles larger than a straight angle but less than $1$ turn (between ${180}^o$ and ${360}^o$) are called reflex angles.

Therefore, the range of reflex angle is greater than ${180}^o$ but less than ${360}^o$.

Hence, option $C$ is correct.