A cuboid is 50cm ×40cm ×4 cm is melted to form a cube. Find its edge and hence the surface area.
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Since a cuboid is 50cm ×40cm ×4 cm is melted to form a cube.
So Volume of Cuboid = Volume of cube
= lbh = edge^3
= 50 cm * 40 cm * 4cm = edge ^3
= 8000cm^3 = edge
= 20 cm = edge.
Total Surface area of cube = 6* edge^2
= 6* 20*20 cm^2
= 2400 cm^2.
Hope it's helpful to u.
So Volume of Cuboid = Volume of cube
= lbh = edge^3
= 50 cm * 40 cm * 4cm = edge ^3
= 8000cm^3 = edge
= 20 cm = edge.
Total Surface area of cube = 6* edge^2
= 6* 20*20 cm^2
= 2400 cm^2.
Hope it's helpful to u.
Answered by
1
since the cuboid is melted into cube
Then, volume of cube=volume of cuboid
volume of cuboid=50×40×4cm³=8000cm³
length of each side of cube=³√8000=20cm
surface area=6(20)²=2400cm²
Then, volume of cube=volume of cuboid
volume of cuboid=50×40×4cm³=8000cm³
length of each side of cube=³√8000=20cm
surface area=6(20)²=2400cm²
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