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A. Convert 2 dm to meters: 2 dm × 0.1 meter/dm = 0.2 meter

Area of one tile = 0.2 m × 0.2 m = 0.04 sq. meter

B. Find the area of the floor:

A = (length) ×(width)

A = (2.8 m) (1.6 m)

A = 4.48 sq. meters

C. Divide the floor area by the area of a tile

4.48 sq meters/0.04 sq meter = numbers of tiles needed

= 112 tiles

112 tiles are needed to cover the floor area.

Area of one tile = 0.2 m × 0.2 m = 0.04 sq. meter

B. Find the area of the floor:

A = (length) ×(width)

A = (2.8 m) (1.6 m)

A = 4.48 sq. meters

C. Divide the floor area by the area of a tile

4.48 sq meters/0.04 sq meter = numbers of tiles needed

= 112 tiles

112 tiles are needed to cover the floor area.