A rectangular water Reservoir contains 36000 litres of water. Find the depth of water in the reservoir, if it's base measures 8m by 4m. Also find the surface area of the reservoir.
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water reservior is in the form of cuboid
so volume of cuboid = 36m^3
bcoz 1000litre= 1m^3
now
volume of cuboid =l*b*h
8m*4m*h = 36
h=36/32
h=1.125m
and suface area of cuboid = 2(lb*bh*hl)
=2(8*4+4*1.125+1.125*8)
=2(32+4.500+9)
2*45.500
91m^2
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