Answer:
12.1 feet
Step-by-step explanation:
Given for 5 rotations made the unicycle travels 37.94 feet
We know that the distance travelled by the cycle = [tex]number of rotation \times circumference[/tex]
Let the radius of the unicycle be r
Circumference = 2πr
Given [tex]5\times 2πr=37.94[/tex]
[tex]2r=\frac{37.94}{3.14}[/tex]
diameter = 2r
d = 12.1 feet
Therefore the diameter of the unicycle is 12.1 feet