Question

The length and width of a rectangular room are measured to be 3.95 ± 0.05 m and 3.05 ± 0.05 m, respectively. The area of the floor is

(a) 12.05 ± 0.01 m²

(b) 12.05 ± 0.005 m²

(c) 12.05 ± 0.34 m²

(d) 12.05 ± 0.40 m²

Answer 1

Answer is : (c) 12.05 ± 0.34 m²

So, area of floor is A = 12.05 ± 0.34 m².