A rectangular swimming pool has the following description:

Length: 48 ft.

Width - 22 ft.

Bordered by 8.5 ft. walkway.

Determine 1) perimeter around pool, 2) perimeter around outside edge of walkway.

Check my calculations:

Perimeter = 2L + 2W

P = 2(48) + 2(22)

P = 96 + 44

P = 140 ft. around pool.

P = 2(48) + 2(13.5) : Difference between width of pool and walkway.

P = 96 + 27

P = 123 ft. around outside edge of walkway.