Answer:
B is obtuse.
D is acute.
Step-by-step explanation:
There are five main types of angles:
- Acute: Angles less than 90.
- Right: Angles exactly 90.
- Obtuse: Angles more than 90 but less than 180.
- Straight: Angles exactly 180.
- Reflexive: Angles more than 180 but less than 360.
Angle B is obtuse because it is more than 90 degrees but less than 180.
Angle D is acute because it is less than 90 degrees.
