To find the radius of the original circle, we can use the relationship between the radius of the original circle and the radius of the dilated circle obtained by scaling.
Let r be the radius of the original circle.
Given that the dilated circle has a radius of 9 inches after scaling by a factor of 3/4, we can set up the following equation:
(3/4) * r = 9
To solve for r, we can multiply both sides of the equation by (4/3):
r = 9 * (4/3)
Simplifying, we get:
r = 36/3
r = 12
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?
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