It should be 31.41 bc the equation is 2•pi•radius
You need to set this up with a proportion and solve. 18/x-5 = 13.5/12.
cross multiply 13.5x-67.5=216
now solve for x
13.5x=283.5
x=21
the missing side is equal to 21-5, which is equal to16
A. 8 is the answer
If the triangles are similar then their sides need to be in the same ratio. So, if 22 become 11, then the ratio is 2:1. So, for 16 it becomes 8.
Not enough information to properly answer this... hope this helped though
Mode is the number that most occurs in the data. From the given data set, there is no repeated number. Thus, there is no mode for the data set.