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31 October, 19:41

A circle with a radius of 4 in, is dilated by a scale factor of 5. What will be the circumference of the circle after dilation?

21 in

4 in

161 in

24 in

+3
Answers (1)
  1. 31 October, 20:00
    0
    Ok so circumference=2*pi*radius. So We know that the radius is dilated by a scale factor of 5, so we can put 2*pi*20. For pi you can use So when we multiply 2*pi*20, you get 125.6637
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