Question

Range of an obtuse angle is:

• A. $[0˚,90˚)$
• B. $(0˚,90˚]$
  
• C. $[90˚,180˚)$
  
• D. $(90˚,180˚)$
  

Answer 1

The correct option is D $(90˚,180˚)$

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 ${90}^o$.

Reflex angle is the angle which is greater than ${180}^o$ and less than ${360}^o$.