Question

two cubes each with 12cm edge are joined end to end find the surface area of resulting cuboid​

Answer 1

Step-by-step explanation:

Two cubes of each side = 12cm

Joined end to end

length = 12+12 = 24cm

height = 12cm

breadth = 12cm

Total surface area of new cuboid formed

=2(lb+bh+hl)

=2(24×12+12×12+12×24)

=2(288+144+288)

=2(720)

=2×720

=1440cm²

Hence, total surface area of new cuboid formed = 1440cm2

Answer 2

Answer:

dimensions of cuboid

length (l)=12+12=24cm

breadth (b)=12cm

height (h)=12cm

total surface area = 2(lb + bh + hl)

=2(24 × 12 + 12 × 12 + 24 × 12)

=2(288 + 144 + 288)

=2(720)

=1440cm^2

Step-by-step explanation:

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