Circle Terms
The distance from the center of a circle to the outside, also half of the diameter
radius
The diameter is 5 ft
2.5 ft
The radius is 5 mm
10 mm
The diameter is 10 feet
31.4 feet
The radius is 5 yards
78.5 sq yards
The distance from one edge of the circle to the other, while passing through the center
Diameter
The diameter is 12 cm
What is 6 cm
The radius is 3.5 miles
7 miles
The diameter is 13 cm
40.82 cm
The radius is 4.5 m (round to the nearest hundreth)
63.59 m
What kind of relationship does the radius and diameter have?
Proportional Relationship
The circumference of a circle is 84.78 in
13.5 in
The circumference 15.7 yards
5 yards
The radius of this circle is 12.5 m
78.5 m
The diameter is 32 inches
803.84 sq in
The total amount of space inside of a circle
Area
The diameter of a circular swimming pool is 24 ft.
12 ft
The center of the pizza to the outside is 8 inches.
16 inches
The length across the center of a hot tub is 9 feet.
28.26 feet
The center of the trash can to the outside is 1.5 feet
7.07 sq ft
What is pi?
3.14, the constant of proportionality between the diameter and circumference.
The fence around a circular pool is 75.36 meters.
12 meters
The length of a basketball rim is 56.52 inches
18 inches
The tip to the crust of a slice of pie is 6 in
37.68 in
A Crumbl Cookie is measured to be 4 inches across the center of the circle
12.56 sq in