The dimensions of a cuboidal box are 15 cm long 6 broad and 45 mm height. find the surface area of the box.
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surface area of cuboid is 2( lw +wh + hl ) where l is length , w is width , and h is height .
= 2 (lw+wh+hl)
= 2 (15*6 + 6*45 + 45*15 )
= 2 (90 + 270 + 675)
= 2 (1035)
= 2070 cm
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