2 cubes, each of volume 125 cm^3, are joined end to end. Find the surface area of the resulting cuboid.... | VSA 2m | Maths | SuperPadhai

Surface Areas And Volumes > Question

VSA2 marksYear: 2020EasyCBSE Class 10

surface-areas-volumescubecuboidsurface-area

Question

2

cubes, each of volume

125

cm

^{3}

, are joined end to end. Find the surface area of the resulting cuboid.

Solution

1

Side of cube

= (125)^{1/3} = 5

cm

+0.5 marks

2

Dimensions of cuboid:

10, 5, 5

+0.5 marks

3

Surface area

= 2 (10 \times 5 + 5 \times 5 + 5 \times 10) = 2 (50 + 25 + 50) = 250

cm

^{2}

+1 mark

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