The sides of rectangular plot are in the ratio of 4 : 3 and its area is 1452 m^2. Find the cost of fencing or at Rs 2.50 per woo cm × 50 cm?
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area of a rectangular plot=lb
1452m^2=4x*3x
1452=12x^2
x^2=1452/12
x=√121
x=11m
4x=>4*11=44m
3x=>3*11=33m
perimeter of a rectangular plot=2(l+b)
=2(44+33)
=2*77=154m
154m=>154*100=15400cm
cost of fencing=15400/50*2.50
=₹770
1452m^2=4x*3x
1452=12x^2
x^2=1452/12
x=√121
x=11m
4x=>4*11=44m
3x=>3*11=33m
perimeter of a rectangular plot=2(l+b)
=2(44+33)
=2*77=154m
154m=>154*100=15400cm
cost of fencing=15400/50*2.50
=₹770
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