Question

Two cubes each of edge 4.5dm are joined face to face .Calculate the surface area of the jointed cuboid.​

Answer 1

Length=9

Breadth=4.5

Height=4.5

surface area=2(l+b)h

=2(9+4.5)4.5

=2×13.5×4.5=121.5sq unit

Answer 2

$\huge\underline\mathfrak\purple{Bts}$

l=9

b=4.5

h=4.5

Surface are=2(l+b)h

2(9+4.5)4.5

2(13.5)4.5

121.5 sq