Radius
Diameter
Circumference
Area of a Circle
Word Problems
100
The diameter of the circle is 10
What is 5?
100
The radius of the circle is 4
What is 8?
100
The diameter of the circle is 12
What is 37.68?
100
The radius of a circle is 8
What is 200.96
100
Heather wants to put a circular firepit in her backyard. If she needs the firepit to be 4 feet wide, what will be the length of the border around the firepit?
What is 12.56 ft?
200
The diameter of the circle is 16
What is 8?
200
The radius of the circle is 22
What is 44?
200
The diameter of the circle is 10
What is 31.4?
200
The radius of a circle is 1
What is 3.14?
200
Maria is putting a small fence around a play area in her backyard for her puppy. If the diameter of the play area is 6 feet, how much fencing does she need to enclose her puppy’s play area?
What is 18.84 ft?
300
The diameter of the circle is 88
What is 44?
300
The radius of the circle is 45.2
What is 90.4?
300
The diameter of the circle is 62.5
What is 196.25?
300
The radius of the circle is 9
What is 254.34?
300
Pepe’s Pizza sells a large pizza that has a diameter of 16 inches. How many square inches of pizza is in the large pizza?
What is 200.96 in2?
400
The circumference of the circle is 7,850
What is 1,250?
400
The circumference of the circle is 28.26
What is 9?
400
The radius of the circle is 18
What is 113.04?
400
Find the area of the semicircle
What is 76.93?
400
A farmer’s field is watered by the irrigation system shown below. The diagram shows a 20-meter-long irrigation system that rotates around the field. How many square meters of the field can be watered by one rotation?
What is 1,256 m2?
500
The circumference of the circle is 452.16
What is 72?
500
The circumference of the circle is 1,133.54
What is 361?
500
The radius of the circle is 50.25
What is 315.57?
500
Find the area of the partial circle
What is 78.5?
500
Heather has a circular-shaped garden in her backyard. If the border of the garden is about 37.68 feet, how much of the backyard does the garden cover?
What is 113.04 ft2?