The radius of ferris wheel is 124 feet
<em><u>Solution:</u></em>
Given that, Sabrina rode on a ferris wheel at the state fair
In one rotation she traveled 778.72 ft
To find: Radius of ferris wheel
The distance traveled in one rotation is equal to circumference of circle
Thus circumference of circle is equal to 778.72 feet
<em><u>The circumference of circle is given as:</u></em>

Where, "r" is the radius and
is a constant equal to 3.14
Substituting, C = 778.72

Thus radius of ferris wheel is 124 feet