The circumference of the base of a half-ball is 50π cm. What is the area of ​​a sphere whose radius is 3 times smaller than that of this half-ball?

When you dilate a figure with a scale factor of 1/2, what will the dilated figure look like?                                                                                           a: the dilated figure will have side lengths that are half the length of the original side lengths.                                                                          b: the angles in the dilated figure will be half the measure of the original figure.                                                                                c: the dilated figure will have side lengths twice the length of the original.