The radius of the original circle can be found by dividing the radius of the dilated circle by the scale factor:
Radius of original circle = Radius of dilated circle / Scale factor
Radius of original circle = 18 cm / 15
Radius of original circle = 1.2 cm
Therefore, the radius of the original circle is 1.2 cm.
If you use a scale factor of 15 to create a circle with radius 18 cm, what is the radius of the original circle you dilated?(1 point
90cm
9m
3.6cm
180cm
1 answer
1 answer