A unicycle wheel has a diameter of 12 inches. How many inches will the unicycle travel in 4 revolutions? Use π = 3.14 and round your answer to the nearest hundredth of an inch.

Respuesta :

Answer:

226.19 inches in 6 revolutions.  

Step-by-step explanation:

Diameter of the unicycle's wheel=12 inches  

The distance traveled by the unicycle in one revolution is the circumference of the wheel.  

For a circle of diameter d,  

Circumference  

Therefore, Circumference of the Unicycle's wheel  inches  

Since the distance traveled in one revolution= inches  

Distance traveled in 6 revolutions=6 X  inches  

=226.19 inches (to the nearest hundredth of an inch.)

A unicycle wheel is a one wheeled device, unlike the bicycle which has two wheels.  

The given unicycle has a diameter, D, of 12 inches. It's radius, r, can be determined by;

 r =  

         =  

          = 6  

∴        r = 6 inches.

A revolution is a complete movement of a point forming a circle, or the movement of a point along the circumference of a circle.  

Circumference of a circle = 2r  

Thus,  

the circumference of the wheel = 2 ×  × 6  

                                                   = 37.7143  

The circumference of the wheel is 37.7143 inches.  

Therefore, for 6 evolutions the unicycle would travel:

        6 × 37.7143  

            = 226.2857

The unicycle would travel 226.29 inches in 6 revolutions