40 square meters
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3 square metres
you do 9 meters long x 8 meters wide= 72cm3 [ cm3 = area of something ].
The perimeter of a shape is the total distance around its outer boundary. For a rectangle with sides of 9 meters and 4 meters, the perimeter would be calculated as P = 2(9) + 2(4) = 18 + 8 = 26 meters. The area of a shape is the total space enclosed within its boundaries. For the same rectangle, the area would be calculated as A = 9 * 4 = 36 square meters.
area = 8*5 = 40 square cm
Diagonal = 10 meters.