To find the radius of the original circle dilated, you need to multiply the radius of the dilated circle by the reciprocal of the scale factor.
The scale factor is 1/5, so the reciprocal is 5/1 or simply 5.
The radius of the dilated circle is 18 cm, so to find the radius of the original circle, you multiply 18 by 5.
Radius of the original circle = 18 cm * 5 = 90 cm
If you use a scale factor of. 1/5 to create a circle radius 18cm, What is the radius of the original circle dilated
3 answers
What scale factor will produce a dilated image that is smaller than the original image
To produce a dilated image that is smaller than the original image, you need to use a scale factor between 0 and 1.
If you use a scale factor of 0.5, for example, the dilated image will be half the size of the original image. Similarly, if you use a scale factor of 0.25, the dilated image will be one-fourth the size of the original image. Any scale factor between 0 and 1 will result in a smaller dilated image.
If you use a scale factor of 0.5, for example, the dilated image will be half the size of the original image. Similarly, if you use a scale factor of 0.25, the dilated image will be one-fourth the size of the original image. Any scale factor between 0 and 1 will result in a smaller dilated image.