2 cubes each of volume 64cm are joint end to end.find surface area of resulting cuboid
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Step-by-step explanation:
volume of 1 cube = 64cm³ = side³
so, side = 4cm
height of formed cuboid = 4cm
breadth of formed cuboid = 4cm
length of formed cuboid = 2 x 4 = 8cm
surface area of cuboid = 2(lb + bh + hl)
= 2(4x4 + 4x12 + 12x4)
= 2( 16 + 48 + 48)
= 2x112
= 224cm²
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