Answer:
first one is SAS
Step-by-step explanation:
We call the ratio between two directly proportional quantities the constant of proportionality. When two quantities are directly proportional, they increase and decrease at the same rate. While these two quantities may increase or decrease, the constant of proportionality always remains the same.
Solution:
we are given that
If G is the midpoint of FH, it mean that

we are also given that

So we can write

So 
Answer:
what is it asking??? I'm so confused!!!? ://
Parallel lines have equal slopes