Question

The lateral surface area of a cube is 256m² the volume of cube is


the number of planks of dimensions 4m×50cm×20cm
that can be stored in a pit which is 16m long 12 m wide and 4m deep is​

Answer 1

Answer:

Given, lateral surface area of a cube =256 m

2

.

We know, lateral surface area of cube =4(edge)

2

.

∴4(edge)

2

=256

⟹(edge)

2

=

4

256

⟹(edge)

2

=64

⟹ edge =8.

Also, volume of cube =( edge)

3

.

∴ Volume of cube =(8)

3

=512 m

3

.