Question

Three cubes of edges 8cm are joined end to end find the surface area of the resulting cuboid pleeeeease od this question fast tomorrow is my exam

Answer 1

as three cubes are joined end to end so the length of the cuboid is 8cm and the breadth and height of the cuboid is 2 cm as cube root over of 8 is 2cm

TSA of cuboid is 2(lb+bh+lh)

2(8*2+2*2+8*2)

=2×36=78sq.cm

Answer 2

Answer:

Length of new cuboid(l) = 8+8+8

=24cm

Breadth of new cuboid(b) = 8cm

Height of new cuboid(h) = 8cm

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

=2(24*8+ 8*8+

24*8)

=2(192+64+192)

=512 sq.cm