Question

5 identical cubes with length measuring 8.5 cm are joined. what will be the surface area of the new 3D shape formed

Answer 1

resulting shape would be a cuboid and dimensions are 8.5*13.5*8.5 respectively
so, surface area of cuboid =2(lb+bh+hl)
=2(8.5*13.5+8.5*8.5+13.5*8.5)
=2(301.75)
=603.50 cm2

Answer 2

⭐Question:-

                Q)  5 identical cine with edges measuring 8.5 cm are joined what is surface area of the new 3d shape formed​  

⭐Answer:-

Since 5 Identical cubes of length 8.5cm are joined hence length will add up of all

$8.5*5 = 42,5 cm$

The breath and height will reamin the same

Now total surface area of the new cuboid will be

$= 2 ( lb + bh + hl )\\= 2 ( 42.5*8.5 + 8.5*8.5 + 42.5*8.5)\\= 1589.5 cm^2$

⭐thank you