Answer:
ΔDEC/ΔRST is 13/3 it is c
Step-by-step explanation:
ΔRST/ΔDEC = 3/13 so the inverse is 13/3
Answer: About 4
Step-by-step explanation:
16 divided by 3 2/3 is 4. decimal so round that and about 4 is you’re answer.
Answer:

Step-by-step explanation:
Lines form 180 degrees on either side. The negative sign simply implies direction (clockwise instead of counter-clockwise), which is negligible as 180 is exactly half of 360 so you'd form the same line.
Answer:
<AFB
Step-by-step explanation:
The angle that is a vertical angle with <EFD would be the angle that is vertically opposite and equal to <EFD.
Taking a look at the diagram, yiu would observe that <AFB is vertically opposite to <EFD. Therefore, <AFB is a vertical angle with <EFD.