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Questions and Answers
What is the formula to calculate the circumference of a circle?
What is the formula to calculate the circumference of a circle?
- π * (radius)^2
- π * diameter
- 2 * radius
- 2 * π * radius (correct)
What is the relationship between the diameter and the radius of a circle?
What is the relationship between the diameter and the radius of a circle?
- The diameter is the same as the length of the radius
- The diameter is twice the length of the radius (correct)
- The diameter is half the length of the radius
- The diameter is π times the length of the radius
What is the area of a circle if the radius is 5 units?
What is the area of a circle if the radius is 5 units?
- 50 square units
- 10Ï€ square units
- 25Ï€ square units (correct)
- 25 square units
