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A-rectangular-hall-12m-long-and-10m-broad-is-surrounded-by-a-path-2m-wide-Find-the-area-of-the-path-




Question Number 26316 by jenna.superable last updated on 24/Dec/17
A rectangular hall 12m long and 10m  broad, is surrounded by a path 2m  wide. Find the area of the path.
$$\mathrm{A}\:\mathrm{rectangular}\:\mathrm{hall}\:\mathrm{12m}\:\mathrm{long}\:\mathrm{and}\:\mathrm{10m} \\ $$$$\mathrm{broad},\:\mathrm{is}\:\mathrm{surrounded}\:\mathrm{by}\:\mathrm{a}\:\mathrm{path}\:\mathrm{2m} \\ $$$$\mathrm{wide}.\:\mathrm{Find}\:\mathrm{the}\:\mathrm{area}\:\mathrm{of}\:\mathrm{the}\:\mathrm{path}. \\ $$
Answered by rita1608 last updated on 24/Dec/17
area of rectangular hall=l×b                                                       =12×10                           =120 m^2   area of new rectangular 2 m wide   than rectangular hall=16×14  =224m^2   area of path=224−120=104m^2
$${area}\:{of}\:{rectangular}\:{hall}={l}×{b} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:=\mathrm{12}×\mathrm{10} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:=\mathrm{120}\:{m}^{\mathrm{2}} \\ $$$${area}\:{of}\:{new}\:{rectangular}\:\mathrm{2}\:{m}\:{wide}\: \\ $$$${than}\:{rectangular}\:{hall}=\mathrm{16}×\mathrm{14} \\ $$$$=\mathrm{224}{m}^{\mathrm{2}} \\ $$$${area}\:{of}\:{path}=\mathrm{224}−\mathrm{120}=\mathrm{104}{m}^{\mathrm{2}} \\ $$

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