Answer:
Option C. 
Step-by-step explanation:
we know that
If two figures are similar, then the ratio of its corresponding sides is proportional
In this problem
Using proportion

Answer:
√50
Step-by-step explanation:
Use Pythagorean Theorem: a^2+b^2=c^2
5^2+5^2=c^2
25+25=c^2
50=c^2
c=√50
Answer:
The nearest time is 15 years or 180 months