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.
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)
1 answer
1 answer