Answer :
I saw the image of the pool and its surrounding walkway.
Pool: Length = 20 m ; width = 16 m
Pool with walkway: Length = 26 m ; width = 22 m
Area of the Pool = 20 m * 16 m = 320 m²
Area of the Pool with walkway = 26 m * 22 m = 572 m²
Area of the walkway = 572 m² - 320 m² = 252 m²
Pool: Length = 20 m ; width = 16 m
Pool with walkway: Length = 26 m ; width = 22 m
Area of the Pool = 20 m * 16 m = 320 m²
Area of the Pool with walkway = 26 m * 22 m = 572 m²
Area of the walkway = 572 m² - 320 m² = 252 m²