prepare models of 2 cubes of same size join them along length/breadth /height find the lateral tsa,total surface area of tsa of new cuboid obtained
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Step-by-step explanation:
Let the Side of both cube be 'a'
lenght of the cuboid =2a
breadth of the cuboid=2a
height of the cuboid =a
lateral surface area=2(l+b)×h
=2(2a+2a)×a
=2×4a²=8a²
Tsa= 2(lb+bh+lh)
= 2(2a×2a+2a×a+2a×a)
= 2(4a²+2a²+2a²)
= 2×8a² = 16a²
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