Describe the policies created be the government of Rwanda during the 1960s. (Site 1)

and

Describe the events that took place in Rwanda between the Tutsi and the Hutu during and after April, 1994. (Site 1)

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