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
100
If you are placing a fence around a circular garden, which of the following are you solving for?
Circumference
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
200
Amy has a bowl that she wants to fill to the top with ice cream. The radius of the bowl is 4 inches. How much ice cream can she fill the bowl with? Round to the nearest tenth.
50.3 square inches
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
300
Randy’s circular garden has a radius of 1.5 feet. He wants to enclose the garden edging that costs $0.75 per foot. About how much will the edging cost?
$7.00
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
400
You are buying a pizza whose radius is 14 inches. You get pepperoni, bacon, extra cheese, and sausage placed in equal sections of the pizza. How much area of the pizza is pepperoni?
153.86 square 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
500
You want to buy the largest pizza in New York State. You find a pizza that measures 75.36 inches around. What is the area that the pizza covers?