Question

Four cubes, each of edge 9 cm, are joined as shown below: Write the total surface area of the resulting cuboid ( in sq cm)

Answer 1

Answer:

Answer

Edge of each cube =9cm

We know that

Length of the cuboid formed by 4 cubes (1)=9×4=36cm

Breadth (b)=9cm

and height (h)=9cm

Total surface area of the uboid =2(lb+bh+hl)

Substituting the values

=2(36×9+9×9+9×36)cm

2

By further calculation the values =2(324+81+324)cm

2

So we get =2×729cm

2

=1458cm

2

Volume =l×b×h=36×9×9cm

2

=2916cm

3

Answer 2

Step-by-step explanation:

Answer:

Answer

Edge of each cube =9cm

We know that

Length of the cuboid formed by 4 cubes (1)=9×4=36cm

Breadth (b)=9cm

and height (h)=9cm

Total surface area of the uboid =2(lb+bh+hl)

Substituting the values

=2(36×9+9×9+9×36)cm

2

By further calculation the values =2(324+81+324)cm

2

So we get =2×729cm

2

=1458cm

2

Volume =l×b×h=36×9×9cm

2

=2916cm

3

I hope you get help.