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Directions: Solve each given problem.
1. The diameter of a nickel is 2 cm. What is the circumference of the nickel?
2. What is the circumference of a compact disk if the radius is 4.5 cm?
3. A circular swimming pool is 21 feet in diameter. What is the circumference?
Directions: Solve each given problem.
1. The diameter of a nickel is 2 cm. What is the circumference of the nickel?
2. What is the circumference of a compact disk if the radius is 4.5 cm?
3. A circular swimming pool is 21 feet in diameter. What is the circumference?
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Answer:
1. D = 2cm , C = ?
C = 2 × 3.14 × 4
C = 25.12 cm
2. R = 4.5 , C = ?
C = 2 × 3.14 × 4.5
C = 28.26 cm
3. D = 21 ft , C = ?
C = 2 × 3.14 × 21
C = 131.88 ft