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
90 cm
90 cm
9 m
9 m
3.6 cm
3.6 cm
180 cm
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).
18 cm / 15 = 1.2 cm