The geometry of buried rock layers is studied for suitability for extracting fossil fuels by .

the following sets of characteristics describe what we know about the outer plants is c. rocky surface, closet to the sun and larger in size

the answer would be the third option, "no, ariel should have added 9^2 and 12^2 and compared that to 15^2."

this is found through the pythagorean theorem, which is a^2 + b^2 = c^2.

this is the correct way of solving the problem:

9^2 + 12^2 = 15^2

81 + 144 = 225

225 = 225