A solid cuboid is formed by joining 24
cubes of 1 cm side. If perimeter of the
base of the cuboid is 12 cm, find the
height of the cuboid.
(A) 1 cm
(B) 2 cm
(C) 3 cm
(D) 4 cm
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Given the side of cube is 12 cm
Then if two cubes are joined Then the length of cuboid =12+12=24 cm, breadth is 12 cm and height is 12 cm
Then surface area of cuboid =2(24×12+×12×12+×24×12)=2(288+144+288)=2×720=1440cm
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