1. Circumference
If the diameter of a circle is 10 cm, calculate the circumference and round to the nearest tenth of a cm.
31.4 cm
17.5 cm
Calculate the distance a hula hoop travels that has a diameter of 4 ft and rotates 11 times. Round to the nearest foot.
138 ft.
Calculate the speed of a car that travels 300 miles in 6 hours. Express your answer in miles per hour.
50 mi/h
Convert 1.2 miles to inches. (There are 5280 ft in a mile and 12 inches in a ft).
76302 inches
If the radius of a circle is 3 cm, calculate the circumference. Round to the nearest tenth of a cm.
18.8 cm
Calculate the arc length of an arc of a circle whose circumference measures 40 cm and the central angle measures 45 degrees.
5 cm.
How far have you traveled on a Ferris wheel if you completed 4 rotations and the diameter is 120 feet. Round to the nearest foot.
1508 ft
Calculate the rotational velocity of a tire that rotated 60 times in 3 minutes. Express your answer in rpm.
20 rpm.
Convert 4.5 rotations to degrees (remember there are 360 degrees in a full rotation).
1620 degrees
If the circumference of a circle measures 50 ft, calculate the diameter of the circle. Round to the nearest tenth of a foot.
15.9 ft
Calculate the radius of an arc whose central angle measures 120 degrees and whose arc length measures 12 cm. Round to the nearest tenth.
5.7 cm
How many times did a hula hoop rotate if its diameter is 3 ft and it rolled 80 ft. Round to the nearest tenth of a rotation.
Calculate your linear speed on a carousel that has a diameter of 20 ft that rotates 6 times in 8 minutes. Write your answer as ft per minute. Round to the nearest tenth.
47.1 ft/min
480 revolutions per hour.
If the circumference of a circle measures 100 miles, calculate the radius. Round to the nearest tenth of a mile.
15.9 miles
Calculate the central angle measure of an arc whose length is 16 ft and whose radius is 9 ft. Round to the nearest tenth of a degree.
101.9 degrees
Calculate the radius of a tire that took 400 rotations to travel 5000 ft. Round to the nearest foot.
2 ft
Calculate the rotational velocity if you are on a carousel that rotated 8 times in 4 minutes. Express your answers as rotations per hour.
120 rotations per hour
Convert 20 miles per hour to ft per second (5280 ft = 1 mi) Round to the nearest tenth.
29.3 ft/s
If the area formula of a circle is A = pi r2, and the circumference of a circle is 8 inches, calculate the area. Round to the nearest tenth of an inch.
5.1 inches
Calculate the distance the second hand travels in 20 seconds if the length of the hand is 5 cm. Round to the nearest tenth of a cm.
10.5 cm
How many miles did Brad run if he ran around a circular field with a diameter of 100 ft 40 times? Round to the nearest tenth of a mile.
2.4 miles
Calculate the diameter of a Ferris wheel that is rotating at a speed of 600 ft/min and made 6 revolutions in 4 minutes. Round to the nearest foot.
127 ft
Convert 50 km per day to cm per second. Round to the nearest whole.
58 cm per second