Vocabulary
Name a shape that has no edges.
Circle
What is the circumference of a circle if the radius measures 7 yds? (Use 3.14 for pi)
43.96 yds
What is the formula to find the area of a circle?
A=
pir^2
What is the area of a circle if the radius measures 6 in? (Use 3.14 for pi)
113.04 in2
What is the diameter of a circle whose circumference is 314 inches? (Use 3.14 for pi)
100 inches
Name the straight line segment that passes through the center of the circle and whose endpoints lie on the circle.
Diameter
What is the circumference of a circle if the radius equals 9 yds? (Use 3.14 for pi)
56.52 yds
What is the formula to find the circumference of a circle?
C=
2pir or pid
What is the area of a circle if the radius is 3 ft? (Use 3.14 for pi)
28.26 ft2
What is the diameter of a circle whose circumference is 690 feet? Round the diameter to the nearest hundredth. (Use 3.14 for pi)
219.75 feet
What do you call the line that goes from the center point of a circle to any point on the circumference?
Radius
What is the circumference of a circle if the radius equals 8.4 yds? (Use 3.14 for pi)
52.752 yds
Find the area of a circle when the radius is 11 in. (Use 3.14 for pi)
379.94 inches
What is the area of a circle if the diameter is 12 feet? (Use 3.14 for pi)
113.04 ft2
DAILY DOUBLE: What is the radius of a circle whose circumference is 378 mm? Round the radius to the nearest hundredth. (Use 3.14 for pi)
60.19 mm
The outside measurement of a circle or the distance around the outside of the circle.
Circumference
What is the circumference of a circle if the radius equals 7.4 yds? (Use 3.14 for pi)
46.472 yds
What is the area of a circle if the diameter is 14 in? (Use 3.14 for pi)
153.86 in2
What is the area of a circle if the diameter measures 8 in? (Use 3.14 for pi)
50.24 in2
What is the radius of a circle whose circumference is 901 cm? Round the radius to the nearest hundredth. (Use 3.14 for pi)
143.47 cm
The measurement of the inside of a circle or how much the circle covers.
Area
The circular fountain in front of the courthouse has a radius of 9.4 feet. What is the circumference of the fountain? (Use 3.14 for pi)
59.032 feet
The diameter of a circle is 16 in. What is the radius?
16 / 2 = 8 in
Radius = 8 in
What is the area of a circle if the diameter is 9 yds? (Use 3.14 for pi)
63.585 yds2
What is the radius of a circle whose circumference is 372 yds? Round the radius to the nearest hundredth. (Use 3.14 for pi)
59.24 yds