Answer:
Step-by-step explanation:
breaststroke=50
backstroke=60
ratio=breaststroke:backstroke
=50:60=5:6
. I'm sooo sorry if I get this wrong I'm not that great at this
The scale factor = 3.00
The scale factor of a circle to another is the ratio of their radii
Radius of the first circle = 9 in
Diameter of the second circle = 6 in
Radius = Diameter / 2
Radius of the second circle = 6 / 2
Radius of the second circle = 3 in
Scale factor = (Radius of the first circle) / (Radius of the second circle)
Scale factor = 9/3
Scale factor = 3.00 (2 decimal places)
Learn more here: brainly.com/question/24020850
The radius is 2.15
hope this helps