If you use a scale factor of 15 to create a circle with radius 18 cm, what is the radius of the original circle you dilated?(1 point)
Responses
180 cm
180 cm
3.6 cm
3.6 cm
90 cm
90 cm
9 m
The correct answer is 1.2 cm.
To find the radius of the original circle, you need to divide the radius of the dilated circle (18 cm) by the scale factor (15).
Radius of original circle = Radius of dilated circle / Scale factor
= 18 cm / 15
= 1.2 cm