Find the surface area of a chalk box, whose length, breadth and height – InterviewSolution

1.

Find the surface area of a chalk box, whose length, breadth and height are 18 cm, 10 cm and 8 cm respectively.

Answer»

Given that,

Length = 18 cm

Breadth = 10 cm

Height = 8 cm

We know that,

Total surface area of cuboid = 2 (lb + bh + hl)

= 2 (18 × 10 + 18 × 8 + 10 × 8)

= 2 (180 + 144 + 80)

= 808 cm²

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