Add all the sides together
7.2+14.8+16.1+18 = 56.1
Answer:

Step-by-step explanation:
Calculate the scale factor, using the ratio of corresponding sides, image to original.
Using the vertical line image = 4 and original = 6 , then
scale factor =
= 
Answer:
fifteen, "number sentence"
Step-by-step explanation:
5 + 5 +5 = 15
52, i am so sorry this is probably incorrect