Well if the fish is directly below the bird then there distance forms a straight vertical line. so to find the vertical distance you can add the 75 meters below sea level and the 887 meters above and get 962
So, first you square both 75 and 887 75 x 75 = 5625 887 x 887 = 786769 After, add them 5625 + 786769 = 792394 Now find the square root of the sum. Just write the square root sign over 792394. Hope this helps! :)