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ofcitsnijah
17.07.2019 •
Mathematics
How will the circumference of the circle change if it is dilated by a scale factor of 4? 16cm the circumference will be 4 times greater than the original. the circumference will be 16 times greater than the original. the circumference will be 1/4 the original. the circumference will be 1/16 the original.
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Ответ:
The circumference of a circle has the formula:
C = 2 π r
Now when it is dilated by a factor of 4, this only means that the radius is also multiplied by a factor of 4, therefore the new circumference is:
C’ = 2 π (4 r)
C’ = 8 π r
So it also grows 4 times.
The circumference will be 4 times greater than the original.
Ответ:
She should pay in dollars
Step-by-step explanation: