two cubes each of volume 27 cm cube are joined end to end to form a solid find the surface area of the reasoning keyboard
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Side of each cube = 3 cm
Surface area = 2 ( lb + bh + lh )
= 2 ( 27 + 9 + 9 )
= 45 × 2
= 90 cm
Surface area = 2 ( lb + bh + lh )
= 2 ( 27 + 9 + 9 )
= 45 × 2
= 90 cm
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