Question

1) How much sheet metal is
required to make a closed
rectangular box of length 1.5 m,
breadth 1.2 m and height 1.3 m.
(2 MARKS)​

Answer 1

Answer:

10.62cm²

Explanation:

The area of the box

= 2( lb + bh + hl )

= 2( 1.5 × 1.2 + 1.2 × 1.3 + 1.3 × 1.5)

= 2(5.31)

= 10.62 cm²

Metal sheet required = the area of the box

Therefore,

Metal sheet required = 10.62 cm²

Ans: 10.62 cm² metal sheet is required for making this rectangular box.

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