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the circumstance of a circle changes from 20 to 4 after a dilation. what was the scale factor of the dilation?
a. 1/25
b. 1/5
c. 5
d. 25​

Respuesta :

IjlalHashmi

Answer:

Option B

Step-by-step explanation:

The circumference of a circle changes from (pre-image)20 to 4(image) after a dilation.

[tex]Scale\ Factor=\frac{Circumference\ of\ image}{Circumference\ of\ pre-image} \\\\Scale\ Factor=\frac{4}{20}\\\\Scale\ Factor=\frac{1}{5}[/tex]

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