a garden is in the shape of a rectangle of length 100 m and breadth 60 m. a margin of width 3 m left around inside the garden. find the area left for flower beds,lawn,etc.between the margins.

Answer :

We have our rectangular garden , As :

Here

Area between the margin  =  Area of outer rectangle  - Area of inner rectangle

So,

Area between the margin  = 100 $\times$  60  -  94 $\times$ 54

Area between the margin  = 6000 - 5076

Area between the margin  = 924 m²                                         ( Ans )