Angle made between minute and hour hands at
2 O'clock in an analog clock is as depicted in below figure,
As per the figure, angle made is greater than
0∘ but less than
90∘, therefore, the angle is acute.
Similarly, angle made at
5 O'clock is depicted in below figure,
As per the figure angle made between minute and hour hands at
5 O'clock is greater than
90∘ but less than
180∘, therefore, the angle is obtuse.
Similarly, angle made at
8 O'clock is depicted in below figure,
As per the figure angle made between minute and hour hands at
8 O'clock is greater than
180∘ but less than
360∘, therefore, the angle is reflex.