How was the country of turkey created?

About 4,000 years ago, the Hittites created an empire in the central part of what is now called Turkey in Anatolia. ... After World War I, the country was invaded by Greece, which led to the Turkish war of Independence in 1920, led by Mustafa Kemal Atatürk. In 1923, the Turkish assembly declared Turkey a republic.

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