Q. 75.0( 5 Votes )
Three cubes each of side 5 cm are joined end to end. Find the surface area and volume of the resulting cuboid.
Given: Side of cube = 5 cm
Surface area of cuboid = ?
Volume of cuboid = ?
Surface area of cuboid = 2(lb + bh + hl)
Volume of cuboid = l × b × h
The resulting figure is:
Length of cuboid “l” = 15 cm
Breadth of cuboid “b” = 5 cm
Height of cuboid “h” = 5 cm
Applying the formula of surface area of cuboid, we get,
Surface area of cuboid = 2 (15×5 + 5×5 + 5×15)
= 2(75 + 25 + 75)
= 350 cm2
Volume of cuboid = L×B×H
= 15 × 5 × 5
= 375 cm3
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