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Word Problem Exercises: Area and Circumference of a Circle


General Questions


What is the area of a circle with a diameter of 5 meters?
1. 





What is the circumference of a circle with a radius of 3 meters?
2. 





If a circle has an area of 72 centimeters square what is the area of one sixth of the circle? 
3. 





If a circle has a radius of 7 meters what is the area of half of the circle? 
4. 





A circular fountain has a diameter of 10 meters. The statue in the middle has a diameter of 1 meter. What is the area of the bottom of the fountain?
5. 





The circular opening of a fan is 1 meter in diameter. There are three fan blades that each take up one twelfth of the fan opening's area. How much of the area of the opening is not covered by the fan's blades? 
6. 





If a circle has a radius of 6 meters then how many circles with a radius of 2 meters would be needed to cover the same area? 
7. 





What are the dimensions of a square that would cover the same amount of space as a circle with a diameter of 4 meters?
8. 





What is the radius of a circle that has a circumference of 31.4 meters?
9. 





What is the distance from one side of an oval track that is 400 meters in total length if each of the two straight sections is 100 meters and each curve is 100 meters? 
10. 








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