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Step-by-step explanation:
total surface area of cuboid=2(lb+bh+lh)
here;
l=6cm
b=2cm
h= 4cm
therefore by the formula;
= 2 ( 6x2+2x4+6x4)
= 2( 12+8+24)
=2 (44)
=88cm²
therefore the total surface area of cuboid is 88cm²
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