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If the radius of a circle is halved, by what factor does the circumference decrease? (2020)

Practice Questions

1 question
Q1
If the radius of a circle is halved, by what factor does the circumference decrease? (2020)
  1. 1/2
  2. 1/4
  3. 1/3
  4. 1/6

Questions & Step-by-step Solutions

1 item
Q
Q: If the radius of a circle is halved, by what factor does the circumference decrease? (2020)
Solution: Circumference = 2πr; If r is halved, new circumference = πr; Factor = 1/2.
Steps: 0

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