Question

the total surface area of box is 308cm and height is 6cm breadth is 4cm find length​

Answer 1

2( lb+ bh+ hl) = 308

Put the values and u will get length 13.

Answer 2

Total surface are of a box = 2( lb + bh + hl )

given height and breadth = 6 CM and 4 CM respectively

now according to question

308 = 2 ( 4L + 6*4 + 6L)

308/2 = 10L + 24

154 -24 = 10L

130 = 10L

L = 130/10

length = 13 CM

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