Rotations on a Circle

In Circle F, line segment FH is 5 ft. Using this information, what is the best estimate of the circumference of Circle F?

• 15 feet

• 18 feet

• 32 feet

• 34 feet

The wheels on a bicyle has a circumference of 7 feet. If the bicylce travels 70 feet, how many rotations does the wheels complete?

• 7 rotations

• 10 rotations

• 12 rotations

• 15 rotations

Arthur ran around a circular field. What do you need to find in order to know how far Arthur ran around the circular field?

• area

• circumference

• diameter

• radius

Mathematical Equivalence

OFF

Describe the Rotation that occurred (p.23)

• 90° cw/ 270° ccw

• 
• 90° ccw/ 270° cw

• 
• 180°

• 

The circumference of Tyler's bike tire is 72 inches. What is the diameter of the tire? (Use 3.14 for pi and round to the nearest tenth)

• d=113.05 in

• d=226.1 in

• d=11.5 in

• d=22.9 in

In the park, there is a Ferris wheel with a diameter of 70 meters. How far does a rider travel in one full rotation around a Ferris wheel? (Use 3.14)

• 109.9m

• 219.9m

• 219.8m

• 220m

The diameter of a bike wheel is 30 inches. If a wheel travels 15 complete rotations, how far does the bike travel? (Use 3.14)

• 450 in

• 1413 in

• None of the above

• 94.2 in

Sally has car tire with a circumference of 75.36 ft. What is the radius of the car tire and what is the diameter? (Use 3.14 for pi)

• r=12 ft

• d=26 ft

• r=13 ft

• d=24 ft