Question

The volumes of a cube and a cuboid are equal .If the dimensions of the cuboid are 18 cm,12 cm and 8 cm the edge of the cube is

Answer 1

Answer:

Correct option is

B

216cm

2

Here length of cuboid =9cm, breadth of cuboid =8cm and height of cuboid =6cm

∴ volume of cuboid = length × breadth × height

=9cm×8cm×6cm=432cm

3

.

According to question:

volume of cuboid = 2× volume of cube

432cm

3

=2×(side)

3

⇒216cm

3

=(side)

3

⇒(6cm)

3

=(side)

3

∴ Side of cube = 6 cm.

Since, total surface area of the cube = 6×side

2

=6×(6cm)

2

=216cm

2

Answer 2

Answer:

12

Step-by-step explanation:

18*12*8=a³

a³=1728

a= 12 cm

So edge of cube is 12 cm

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