Question

please tell me answer​

Answer 1

Answer:

Acute angle - angle between 90° and 0°

Obtuse angle - angle between 180° and 90°

1. angle ABC is obtuse angle
2. angle DAB is acute angle
3. angle ADC is obtuse angle
4. angle BCD is acute angle

Answer 2

Answer:

Angle B and D are obtuse angle and angle A and c are acute angle.