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Surface area of cuboid =2(lb+bh+hl)
Length =16cm, breadth =15cm,
height =8.5cm
Surface area =2((16*15)+(15*8.5)+(8.5*16)
=2(240+127.5+136)
=2(503.5)
=2*503.5
=1007 sq. cm
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hey mate here is your answer
surface area of cubiod=2(lb+bh+hl)
=2(16×15+15×8.5+16×8.5)
=2(503.5)
=1007square cm
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