Question

3 cubes each of sides 5 cm join end to end find surface area

Answer 1

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

H=5cm

L=15 (5+5+5)

B=5cm

Sirface area=2(75+25+75)

=2(175)

=350cm

Answer 2

The surface area of the desired resultant cube will be given in the attachment above

Pls refer to it mate ....♡♥