Respuesta :

1. line

2.  BC with line

3. ef

4. obtuse

5. 18 degrees

6. 65

7. 73, acute

8. obtuse, scalene

Answer:

1. line CD

2. ray AC

3. EF

4. obtuse

5.18°

6.65°

7. 73°, acute

8.obtuse, scalene