The Dred Scott Case vs Sanford was about gaining freedom. The North were trying to help so that he would gain his freedom since he was in a nonslavery state but the South fought that he was property and remained property.
Answer: Wassily Kandinsky
It's D.)5,12,13.
5^2 + 12^2 = 13^2
25 + 144 = 169
169 = 169