X=7
You divide 14 by 2 to find the proportion (7) then multiply it by 1 to get the base length of the large triangle since they’re congruent.
The greatest common factor of 12 and 6 is 6.
Answer:
12.30
Step-by-step explanation:
1.30x4=5.20
54.40-5.20=49.20
49.20/4= 12.30
Answer:
B) 
Step-by-step explanation:

Hope this helps