Question

two cubes each with side B A join to form a cuboid what is the surface area of this keyword it is 12 square if the surface area of the cuboid formed by joining three such gives 18 B square why​

Answer 1

side of cube = B

now surface area of cuboid = 2(lb×bh×hl)

=2(B+2B+2B)=10B square

1. IT is not 12 B square square

2.if 3 cubes are joined

then l=B

b=3B

H= B

area =14B square. which is not 18 B square

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