Question

A rectangular park is 45 m long and 30 m wide. A path 2.5 m wide is constructed outside the park. Find the area of the path.

Answer 1

Area of park $=l\times b=45\times 30=1350c{m}^2$

Area of park including path $=(45+2.5+2.5)\times (30+2.5+2.5)=1750c{m}^2$

Therefore,

Area of path $=$ Area of park including path $-$ Area of rectangular park

$=1750-1350=400c{m}^2$.