find the area of rectangle plat having length (21.3 +- 0.2) cm and wirth (8.80 +- 0.10)cm
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Area = Length × Width
A = lb
= 21.3 × 8.80
= 187.44 cm^2
ΔA = A × [ΔL/L + Δb/b]
= 187.44 × [0.2/21.3 + 0.1/8.8]
= 3.89 cm^2
∴ Area of rectangle is (187.44 ± 3.89) cm^2
A = lb
= 21.3 × 8.80
= 187.44 cm^2
ΔA = A × [ΔL/L + Δb/b]
= 187.44 × [0.2/21.3 + 0.1/8.8]
= 3.89 cm^2
∴ Area of rectangle is (187.44 ± 3.89) cm^2
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