Barack walks 2 kilometers south and then x kilometers east. He ends 5 kilometers away from his starting position. Find x rounded to the nearest tenth of a kilometer.

Urgent? will give brainliest given that the blue triangle is a right triangle, which expression correctly gives the area of the red square? a) a2 + b2 b) a2 - b2 c) a2 - c2 d) c2 - a2