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Byju's Answer
Standard X
Mathematics
Volume of Combined Solids
3 cubes each ...
Question
3 cubes each side 6 cm are joined end to end. Find LSA, TSA & volume of the new solid.
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Solution
Length
of
each
edge
of
a
cube
=
6
cm
Now
,
when
3
cubes
having
each
side
6
cm
are
joined
end
to
end
,
then
a
cuboid
is
formed
.
Now
,
length
of
the
cuboid
,
l
=
18
cm
breadth
of
cuboid
,
b
=
6
cm
height
of
cuboid
,
h
=
6
cm
Now
,
LSA
=
2
l
+
b
h
=
2
18
+
6
×
6
=
2
×
24
×
6
=
48
×
6
=
288
cm
2
TSA
=
2
lb
+
bh
+
hl
=
2
18
×
6
+
6
×
6
+
6
×
18
=
2
108
+
36
+
108
=
504
cm
2
Volume
=
lbh
=
18
×
6
×
6
=
648
cm
3
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