The area of a rectangular field (in $m^2$) of length 55.3 m and breadth 25 m after rounding off the value for correct significant digit is 

Given, that, length (l) = 55.3 m

Breadth (b) = 25 m

The area of rectangular field is, A = l x b 

= 55.3 x 25

$=1382.5{\mathrm{m}}^2=1.3825\times {10}^3{\mathrm{m}}^2$

$\simeq 1.4\times {10}^3=14\times {10}^2$