is this right and tell me the answers

The answers
7)35cm
8) 18cm
9) 12 cm
10) 20 cm
11)40 cm
12) 14 cm
14) 18cm
What are the second numbers for question 13 and 15
Answer:
7)35cm
8) 18cm
9) 12 cm
10) 20 cm
11)40 cm
12) 14 cm
14) 18cm
Step-by-step explanation: