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What is the diameter of a circle whose circumference is 31.4 cm?

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Question: What is the diameter of a circle whose circumference is 31.4 cm?

Options:

  1. 10 cm
  2. 5 cm
  3. 15.7 cm
  4. 20 cm

Correct Answer: 10 cm

Solution: 

Circumference = πd; 31.4 = πd; d = 31.4/π ≈ 10 cm.

What is the diameter of a circle whose circumference is 31.4 cm?

Practice Questions

Q1
What is the diameter of a circle whose circumference is 31.4 cm?
  1. 10 cm
  2. 5 cm
  3. 15.7 cm
  4. 20 cm

Questions & Step-by-Step Solutions

What is the diameter of a circle whose circumference is 31.4 cm?
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