Question

You can use a scale factor of 3/4 to create a dilated circle with a radius of 9 inches. What is the radius of the original circle?

Answer 1

To find the radius of the original circle, we need to divide the radius of the dilated circle by the scale factor.

The scale factor is 3/4 and the radius of the dilated circle is 9 inches.

So, the radius of the original circle is (9 inches) / (3/4) = 9 * (4/3) = 12 inches.

Therefore, the radius of the original circle is 12 inches.