Two cubical dice having edge 2 cm are joined end to end. Find the tota – InterviewSolution

1.

Two cubical dice having edge 2 cm are joined end to end. Find the total surface area of the solid so formed.

Answer»

Length of the solid

= 2 + 2 = 4 cm

Breadth = 2 cm

Height = 2 cm

Surface area = 2(lb + bh + hl)

= 2(4 x 2 + 2 x 2 + 2 x 4)

= 2(8 + 4 + 8)

= 2 x 20

= 40 cm

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