A) \[(1+r)(b+r)-1b\]
B) \[1b-(1-r)(b-r)\]
C) \[\left( 1+b-r \right)r~\]
D) \[1b-\left( 1-2r \right)\left( b-2r \right)\]
Correct Answer: C
Solution :
(c) Area of the path along length\[=l\times r\] Area of the path along breadth\[=b\times r\] The common area of the paths\[={{r}^{2}}\] \[\therefore \] Total area of the path \[=lr+br-{{r}^{2}}=(l+b-r)r\]You need to login to perform this action.
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