Question

2. The total surface area of a cube is 150 cm?. Find the length of one side of the cube and the volume
the cube.
3. The area of a face of a cube is 256 cm². Find the length of one side, total surface area and th​

Answer 1

Answer:

2.) We know that the total surface area of the cube =6a

2

.

Given, the surface area of a cube is 150cm

2

.

So,

150=6a

2

⟹ a

2

=

6

150

=25

⟹ a=5.

Hence, the side of the cube is 5cm.

Now, we know that the volume of the cube V=a

3

Therefore, V=5

3

=125cm

3.)