The plan of a survey plotted to a scale of 10 m to 1 cm is reduced in such a way that a line originally 10 cm long now measures 9 cm. The area of the reduced plan is measured as 81 cm2. The actual area (m2) of the survey is
10 ehVj ls 1 lseh ds iSekus ij IykWV fd, x, losZ{k.k dh ;kstuk dks bl rjg ls de fd;k tkrk gS fd ewy :i ls 10 lseh yach ,d js[kk vc 9 lseh ekirh gSA de dh xbZ ;kstuk dk {ks=kiQy 81 lseh2 ekik tkrk gSA losZ{k.k dk okLrfod {ks=kQy (eh2) gsS
10000
6561
1000
656
10000
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