Question

metal trunk is 1.5m long 1.2 m broad and 1.3 m high .what is its total surface area?

Answer 1

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Answer 2

$2 \times (length + bredth)height$
$2 \times (1.5 + 1.2)1.3 = 2 \times 2.7 \times 1.3 = 7.02$