the surface area of cubid shaped box having length 80 centimetre, breadth of 40 centimetre height 20 centimetres. (1) 11200 (2) 13000 (3) 13400 (4) 12000
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Answer:
TSA of a cuboid = 2(lb+bh+lh)
= 2(80×40+40×20+80×20)
= 2( 3200+800+1600)
= 2×5600
=11,200
hence your answer is option 1
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