A Cuboidal fish tank has a length of 30 cm , 20 cm and a height of 20 cm . The tank is placed on a horizontal table and it is three - quarters full of water . Find the area of the tank which is in contact with water
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Answered by
267
Area of base=600cm2
Perimeter of base =2(l+b)=100cm
Three quarters is filled with water
=>Up to aheight of 15 cm
=>Area of tank in contact with the water
=Perimeter of base × height of water column+area of base
=100 × 15 + 600
=2100cm2
Perimeter of base =2(l+b)=100cm
Three quarters is filled with water
=>Up to aheight of 15 cm
=>Area of tank in contact with the water
=Perimeter of base × height of water column+area of base
=100 × 15 + 600
=2100cm2
Answered by
48
Volume of tank
30x20x20=12000cm3
=12dcm3
1dcm3=1l
12dcm3=12l
3/4 full=12×3/4=9l=9dcm3=9000cm3
9000/30×20=15cm
Surface area
2(lb+bh+lh)
=2700cm2
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