Question

14. Three cubes each of side 5 cm are placed together. Find the volume and surface area of the cube
thus formed.
​

Answer 1

Answer:

Step-by-step explanation:

side a=5 cm

here h=5 cm

a=5 cm

but b=5*3=15

Volume=abh

=5*15*5

=25*15=375 cm³

Now TSA=2(ab+bh+ha)

=2*( 5*15+15*5+5*5)

=2( 75+75+25)

=2*175

=350 cm²

Answer 2

Volume = 375 cm³

Surface Area = 350 cm

Step-by-step explanation:

GIVEN

Side = 5 cm

___________________________

TO FIND

Volume

Surface Area

___________________________

We know that,

Volume Of Cuboid = Length × Breadth × Height

Length = 5 × 3 = 15 cm

Breadth = 5 cm

Height = 5 cm

Volume Of Cuboid = Length × Breadth × Height

Volume Of Cuboid = 15 × 5 × 5

Volume Of Cuboid = 375

Volume Of Cuboid = 375³

Volume = 375³

___________________________

We know that,

Surface Area Of Cuboid = 2 × [ ( Length × Breadth ) + ( Breadth × Height ) + ( Height × Length ) ]

Surface Area Of Cuboid = 2 × [ ( 15 × 5 ) + ( 5 × 5 ) + ( 5 × 15 ) ]

Surface Area Of Cuboid = 2 × [ 75 + 25 + 75 ]

Surface Area Of Cuboid = 350

Surface Area Of Cuboid = 350 cm

Surface Area = 350 cm