2. Two cubes each of edge 12 cm are
joined. The surface area of new cuboid is
140 sqcm
1440 sqcm
144 sqcm
72 sqcm
Answers
Answered by
1
Answer:
1440 cm²
Step-by-step explanation:
the surface area of a new cuboid is 1440 cm²
Answered by
0
Step-by-step explanation:
length of resulting cuboid is :
= 12cm + 12cm
=24 cm
breath and height remaining same i.e 12 cm each
surface area = 2( lb + bh + hl )
= 2 ( 24×12 + 12×12 + 12×24 )
= 1440 sqcm
so,
the surface area of new cuboid is 1440sqcm
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