The graph shows the path that Karis bicycles on Thursday. Each unit represents 1 mile. She bicycles north, then east, then south
, and finally west to return to the same starting point at (1, 3). On Saturday, Karis starts at (1, 3), but bicycles 4 more miles north and 5 more miles east, along a similar rectangular path. She determines that she rode an additional 4+5=9 miles. Is Karis correct?
<span>The model of the castle can only be made 2 diferent ways. one way is 71 cubes high and 1 cube wide and the other way is 71 cubes wide and 1 cube high.
71 is a prime number and it's only factors are 1 and 71.</span>
