1.

Four cubes each of side 3 cm are joined end to end. Find the surface area of the resulting cuboid.​

Answer»

Answer:

side of SQUARE square = 3 cm

so, length of the CUBOID = 6cm

height= 3CM

breath=3cm

the SURFACE AREA of cuboid = 2 ( lb + bh + hl )

= 2 ( 6×3 + 3×3 +3×6 )

= 2 ( 18 + 9 + 18 )

= 2 ( 45 )

= 90cm



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