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Questions and Answers
If the diameter of a circle is 14 cm, what is its radius?
If the diameter of a circle is 14 cm, what is its radius?
- 7 cm (correct)
- 21 cm
- 3.5 cm
- 14 cm
What is the formula to find the area of a circle?
What is the formula to find the area of a circle?
- A = πr² (correct)
- A = πr
- A = 1/2πr²
- A = 2Ï€r
What is the circumference of a circle with a radius of 10 cm?
What is the circumference of a circle with a radius of 10 cm?
- 20Ï€ cm
- 40Ï€ cm (correct)
- 5Ï€ cm
- 10Ï€ cm
