1. A scientist measures the diameter of a tree's first growth ring as 1.5 centimeters. The scientist
calculates the radius of the tree's first growth ring as 0.75 centimeters, as shown.
0.75 cm
The radius of the tree's last growth ring measures 5.5 centimeters.
If the center of dilation is the center of the tree, by what scale factor did the tree grow from its
first growth ring to its last growth ring? Round your answer to the nearest hundredth.
A. 0.14
B. 0.27
C. 3.67
D. 7.33