Question

If an angle is half of an obtuse angle, then it is necessarily an acute angle.

• A. True
• B. False

Answer 1

The correct option is A True

Since $140°$ is an obtuse angle and half of it i.e. $70°$ is an acute angle.

Since $174°$ is an obtuse angle and half of it i.e. $87°$ is an acute angle.

Therefore, half of an obtuse angle is necessarily an acute angle.