You use scale factor of 3/4
to create a dilated circle with a radius of 9 inches. What is the radius of the original circle?
(1 point)
The radius of the original circle can be found by multiplying the radius of the dilated circle by the reciprocal of the scale factor.
Reciprocal of 3/4 is 4/3.
So, the radius of the original circle can be found as:
Radius of original circle = Radius of dilated circle * Reciprocal of scale factor
= 9 inches * 4/3
= 36/3
= 12 inches
Therefore, the radius of the original circle is 12 inches.