Which statement is true about earths tectonic plates? A(they are floating on the lithosphere B( They are rigid pieces of the lithosphere C( They are stable and do not move D( They are floating on the liquid core

answer; i believe the correct answer is revolution)

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