Question

If you use a scale factor of 1/5 to create a circle with radius 18 cm, what is the radius of the original circle you dilated?(1 point)%0D%0AResponses%0D%0A%0D%0A90 cm%0D%0A90 cm%0D%0A%0D%0A9 m%0D%0A9 m%0D%0A%0D%0A180 cm%0D%0A180 cm%0D%0A%0D%0A3.6 cm

Answer 1

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

If the scale factor is 1/5 and the radius of the dilated circle is 18 cm, the radius of the original circle would be:

(1/5) * 18 cm = 3.6 cm

So, the correct answer is 3.6 cm.