Perimeter is the sum of length of the sides used to made the given figure. The perimeter of the rectangle is 14±0.2 meters.
Perimeter is the sum of length of the sides used to made the given figure.
The absolute area of the floor can be written as,
Area, A = 3.95m × 3.05m = 12.0475 m²
The Error in the area of the floor is,
(ΔA/A) = (Δl/l) + (ΔW/W)
(ΔA/12.0475) = (0.05/3.95) + (0.05/3.05)
ΔA = 0.35 m²
Hence, the area of the rectangular room is 12.0475±0.35 m².
The perimeter can be,
Maximum Perimeter = 2[(3.95+0.05)+(3.05+0.05)] = 14.2
Minimum Perimeter = 2[(3.95-0.05)+(3.05-0.05)] = 13.8
The Perimeter = [(14.2+13.8)/2 ± (14.2-13.8)/2 ] = 14±0.2 meters
Hence, the perimeter of the rectangle is 14±0.2 meters.
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