Concentric circles with center G have radii 5 and 11 as shown.

2 concentric circles with center G are shown. The smaller circle has a radius of 5 and the larger circle has a radius of 11.

Which would prove that the circles are similar?

Dilate the smaller circle by a factor of .

If the circles were not concentric, what additional step would be needed to prove they are similar?

one of the circles so that the circles have the same center.

15 points need quick 1. looking at your graph and the geologic time scale during what period did this rock form? what is the age span of the rock, in millions of years? 2. this rock sample is limestone and shale. with what you know about rock formation, what type of environment did these organisms live in? 3. if some of these fossil samples were found in a rock also containing leaf fossils, could you use radiocarbon dating to determine the age of this rock? explain.