The angle of pi over 2 radians is 90 degrees.
Hey there!
The ratio 6:18 describes Joe's fish tank, certainly. But how?
Note that this ratio can be written as 6 to 18, 6/18, and 6 out of 18.
This ratio can show this: For every 6 goldfish in Joe's tank, there are 12 snails.
Great question!
Hope I helped, please feel free to comment below should you have any questions/comments/concerns!