Its is C 8 because 8 plus 8 is 16 so you want to keep doing 8 until you find 36
3:8 can also be written as 3/8
12:32 can also be written as 12/32

So thus 3:8 is equivalent to 12:32
Answer:
see picture below
Step-by-step explanation:
You would be multiplying pi (3.14) by the number 5
In order for this to be solved we need to know the angle of each side. This question cannot be solved unless you show us the Diagram. I'll be happy to help once that is settled<span />