if you use a scale factor of 1/5 to create a circle with radius 18cm, what is the radius of the origanil circle you dialatoed

1 answer

To find the radius of the original circle that was dilated, you need to multiply the radius of the dilated circle by the scale factor.

Scale factor = 1/5
Radius of dilated circle = 18 cm

Radius of original circle = Scale factor * Radius of the dilated circle
Radius of original circle = (1/5) * 18 cm
Radius of original circle = 3.6 cm

Therefore, the radius of the original circle that was dilated is 3.6 cm.