Question

two cubes, each of side 12cm are joined end to end. what is the surface area of the reasulting cuboid​

Answer 1

According to question ..

length of cuboid=12cm+12cm= 24cm

breadth of cuboid = 12cm

height of cuboid =12cm

T.S.A of cuboid =2(lb+bh+hl).

T.S.A =2( 24×12 + 12×12 + 12×24)

T.S.A.=2( 288 + 144 + 288 )

T.S.A= 2( 720 )

T.S.A=1440 cm.cm or cm^2

T.S.A of cuboid = 1440 cm .square

Answer 2

Answer:

if we attach the two cubes together,then its length became double i.e a=24 and breadth and height will be same i.e breadth= height=12..

area of cuboid =2(lb+bh+hl)

=2(24×12+12×12+24×12)

=2(288+144+288)

=2×720

=1440cm^2

Hope this ...answer will be correct...