The area of the bottom wall that must be tiled is =971.5m²
What is the area of the bottom wall?
From the diagram, the area of the front wall that must be tiled is calculated by subtracting the two smaller rectangles from the main area of the front wall.
The area of the first rectangle (A): (L*W)
Length of A= 210mm
Width of A = 50mm
∴ area of rectangle A = 210 * 50
= 10,500mm
Convert to mm² to m² divide the value by 1000
Therefore 10,500mm is = 10.5m²
The area of second rectangle(B) = L*W
Length = 7 +13 = 20cm
Width = 90cm
∴ Area of B = 20 *90
= 1,800cm² to m²= 18m²
The area of the whole front wall=
50m*20m = 1000m²
Therefore the area of the front wall to be tiled,
= 1000 - (10.5 +18)
= 1000 - 28.5
= 971.5m²
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