Vocabulary
Parts of a Circle
Circumference
Area
100
What is the formula for circumference of a circle?
C = pi x d
100
What is the radius of a circle with a diameter of 26.4 inches?
13.2 inches
100
What is the circumference of a circle if the diameter is 10 inches. Answer in terms of pi.
10π
100
What is the area of circle with a radius of 5 meters? Round to the nearest tenth.
78.5 square meters
200
What is the formula for area of a circle?
A = pi x r^2
200
A diameter consists of how many radii?
2
200
What is the circumference of a circle if the radius is 15 inches. Answer in terms of pi.
30π inches
200
What is the area of a circle with a radius of 10 cm? Answer in terms of pi.
100π square centimeters
300
What line cuts a circle in half?
Diameter
300
How do you find the radius of a circle if you are given the diameter?
Divide the diameter by 2.
300
What is the circumference of a circle with a radius of 9 inches? Round to the nearest tenth.
56.5 inches
300
What is area of a circle with a diameter of 12 feet? Round to the nearest tenth.
18.8 square feet
400
What is the area of a circle?
The amount of space inside the circle.
400
How do you find the diameter of a circle if you are given the radius?
Multiply the radius by 2.
400
What is the diameter of a circle with a circumference of 15.7 cm?
5 cm
400
What is the radius of a circle that has an area of 201.1 square inches?
8 inches
500
What is the circumference of a circle?
The distance around the outside of the circle.
500
If the radius of the circle is 7.5 cm, what is the diameter?
15 m
500
What is the radius of a circle with a circumference of 18.84 m?
3 m
500
What is the diameter of a circle with an area of 184 square centimeters?
15.4 centimeters
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