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 3.6 cm 3.6 cm 9 m 9 m 90 cm 90 cm 180 cm
The correct answer is 1.2 cm.
To find the radius of the original circle, we divide the dilated radius by the scale factor.
Dilated radius = 18 cm
Scale factor = 15
Radius of original circle = Dilated radius / Scale factor = 18 cm / 15 = 1.2 cm