two plots of land have the same perimeter .one is a square of side 64m and the other a rectangle with length 80m which plot has the greater area and by how much
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2
a+ B =ab
so 64m =80 =64+80 =144 so 64 m is big
so 64m =80 =64+80 =144 so 64 m is big
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perimeter of square=perimeter of rect.
4*64=2(80+b)
256=160+2b
breadth=48m
now,area of square=64^2=4096m^2
and area of rect=l*b=48*80=3840m^2
therefore,square plot has greater area.
4*64=2(80+b)
256=160+2b
breadth=48m
now,area of square=64^2=4096m^2
and area of rect=l*b=48*80=3840m^2
therefore,square plot has greater area.
riya317:
thankyou very much
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