Question

Three cubes each of side 5cm are joined end to end. Fond the surface area of the resulting cuboid.

Answer 1

Answer:

length of cube = 5+5+5 = 15cm

breadth = 5cm

height = 5cm

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

= 2(15×5 + 5×5 + 5×15)

=2(75+25+75)

=2(175)

=350