Circular Parts
Circumference
Area
Circle Word Problems
The Year in Review
100
This is the distance between the center of a circle and any point on the circle. 
What is radius?
100
The circumference of a circle which has a diameter of 10 meters (rounded to the nearest 10th).
What is 31.4 meters?
100
This is the area of a circle with a radius of 10 m.
What is 314 m2?
100
A circular pool is 25 feet in diameter. This is the number of 1 foot tiles needed to go around the circumference of the pool. (Round UP to the nearest WHOLE tile).
What is 154 tiles?
100
A recipe calls for one cup of flour and two eggs. How much flour and how many eggs Sarah will need to triple the recipe?
What is three cups of flour and six eggs?
200
The point which is equidistant (same distance) to all points on the circle.
What is the center?
200
The circumference of a circle with a radius of 10 feet.
What is 62.8 feet?
200
This is the area of a circle with a radius of 20 feet.
What is 1256 ft2?
200
A dog is tied up to a tree using a 15 foot rope. This is the area of the lawn the dog can walk on while being tied up, assume the dog can walk in a full circle around the tree.
What is 706.5 ft2?
200
A baseball cap is on sale for 20% off. The original price was $35. What is the sale price?
$28
300
A line which contains the center of the circle and two points on opposite sides of the circle. 
What is diameter?
300
The circumference of a circle with a radius of 25 centimeters.
What is 157 centimeters?
300
This is the area of a circle, in terms of
pi
with a diameter of 10 in.
What is
25pi
in2?
300
This is the area inside of a basketball rim.
This is the area inside a basketball rim.
What is 1589.625 cm2?
300
A race car is traveling at a constant rate of speed around a track. It is traveling 100 miles in 20 minutes. Write an equation that represents the number of miles (y) the car travels related to the number of minutes (m).
y=5x
400
Half a circle.
What is a semi-circle?
400
This is the diameter of a circle with a circumference of 47.1 inches.
What is a diameter of 15 inches?
400
This is the radius of a circle with an area of 28.26 ft2.
What is a radius of 3 feet?
400
Find the area of the gray shaded part of this figure.
37.68 square units
400
The scale factor for the shapes shown below. Triangle ABC is the old shape, DEF is the new shape.
What is 3/2 or 1.5?
500
The length around the outside of the circle
What is a circumference?
500
This is the radius of a circle with a circumference of 125.6 millimeters.
What is 20 millimeters?
500
This is the diameter of a circle with an area of 153.86 cm2?
What is a diameter of 10 cm?
500
This is the number of FULL times a 2,000 cm long cord be wrap around a 15 cm diameter pipe.
What is 42 times?
500
You roll a number cube and then flip a coin.
How many total outcomes are possible?
What is the probability of rolling a 1 or 2 AND the coin landing on tails? Write as a simplified fraction
12 outcomes
1/6 probability