the external length breadth and height of a wooden box open at the top are 10 , 8 , 5 cm respectively. if the total thickness of wood is 1 cm the total surface area of the box is
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TOTAL SURFACE AREA=2(LB+BH+HL)
= 2(10×8+8×5+5×10)
=2(80+40+50)
=2×170
=340cm^2
= 2(10×8+8×5+5×10)
=2(80+40+50)
=2×170
=340cm^2
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