Question

Two cubes each with side 15 CM are joined end to end to form a cuboid find the surface area of the resulting cuboid

Answer 1

2+surface area of cube = surface area of cuboid

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

= 2(30×15+15×15+15×30)

= 2(1125)= 2250cm^2

Answer 2

length =30cm

breadth=15cm

height=15cm

S.A of cubiod=2(lb+bh+hl) sq.uts

=2(450+225+450)

=2( 1125)

=2250cm2