Ellis's backyard has a
6.25
6.256, point, 25 by
6.25

m
6.25m6, point, 25, start text, m, end text patio. She would like to build a
1.5

m
1.5m1, point, 5, start text, m, end text wide extension around
3
33 sides of the patio, as the figure shows. She will buy
0.25
0.250, point, 25 by
0.25

m
0.25m0, point, 25, start text, m, end text tiles that come
25
2525 to a package.

extension patio
How many packages does Ellis need to buy to build the extension?