Answer Key: Math Exercise 7


Answer: 1760 meters
1. A circular track has a circumference of 440 meters. If a runner completes four laps around the track, what distance did the runner cover in total?

Answer: 1.5π inches
2. A circular pizza has a diameter of 18 inches. If it's cut into 12 equal slices, what is the length of the crust (outer edge) of a single slice?

Answer: 49π square meters
3. If the radius of a circular garden is 7 meters, what is the approximate area of the garden?

Answer: 25π square centimeters
4. If the radius of a circular swimming pool is 5 centimeters, what is the approximate area of the pool?

Answer: 12.56 meters
5. If a circular path has a radius of 2 meters, what is the approximate length of the path?

Answer: 144π square inches
6. If a circular rug has a diameter of 24 inches, what is the approximate area of the rug?

Answer: 125.6 meters
7. A circular park has a diameter of 40 meters. What is the approximate distance a person would walk if they jogged around the park once?

Answer: 9π square meters
8. If the diameter of a circular garden is 6 meters, what is the approximate area of the garden?

Answer: 9π square centimeters
9. If the radius of a circular table is 3 centimeters, what is the approximate area of the table's surface?

Answer: 314 square meters
10. What is the approximate area of a circular field with a radius of 10 meters?


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