Question

the length and breadth of a rectangular field are 230m and 150m resp. what distance will a boy cover in walking around 2 times.

Answer 1

2(150+230)=760
now multiply with 2in perimeter

Answer 2

Distance covered by the boy in walking 2 rounds of the field will be twice the perimeter of the field = 2* perimeter.

Now perimeter of a rectangle of length l and breadth b is given by,

P = 2(l + b)

Putting l = 230 and b = 150m in the above formula we get,

P = 2(230+150) = 760 m

Now, the total perimeter of 2 rounds will be

2*760m = 1520m