The circumference of a circle has the formula:
C = 2 Ļ r
Ā
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:
Cā = 2 Ļ (4 r)
Cā = 8 Ļ r
So it also grows 4 times.
Ā
Answer:
The circumference will be 4 times greater than the
original.
