Answer:
129
Step-by-step explanation:
If three lines CD, CE and CF extend from point C, then the following addition postulate is true;
<DCE + <ECF = <DCF
If the space between line C D and C E is 75 degrees, then <DCE = 75
If the space between lines C E and C F is 54, then <ECF = 54.
Substitute the given values into the expression above will give;
<DCF =<DCE + <ECF
<DCF = 75+54
<DCF = 129
Hence the measure of <DCF is 129°
8:15 or 8 to 15 would be the ratio because you compare 8 quarters to 15 coins.
Answer:
C
Step-by-step explanation:
Answer:
You just do.
Step-by-step explanation:
That's all there is
