Surface Area of Cube

Q. If the edge of a cube is 8 cm long, find its total surface area.

Q. The total surface area of a cube is $864m^2$. Find the edge length of the cube.

1. 11 m
2. 13 m
3. 14 m
4. 12 m

Q. Find the area of four walls of a cube whose one edge is of length 2.5 m.

Q.

Once Tom answered the question to unlock the car, he hopped in and drove off to reach his destination – a building calledTheArchitecture.This building closelyresembles a Rubik’s Cube, in the sense that the “rooms” of The Architectureare like the “cubes” of the Rubik’s Cube, as shown:

This building has 3 floors and each floor has 3 $\times$ 3 [read 3 by 3 – which means there are 3 rows and 3 columns] rooms which are all identical in size and shape.Tom stopped the car in front of the building.To enter this architecture, he should enterapasscodewhich is equal to the total number of rooms [cubes] in the building.

What is the passcode that Tom has to enter? ______ [Enter a numerical value]

___

Q. Each side of a cube is increased by 50%. Then the surface area of the cube is increased by:

1. 50%
2. 100%
3. 150%
4. 125%

Q.

Find the lateral surface area and total surface area of a cube of edge $\mathbf{10}\mathbf{}\mathit{c}\mathit{m}\mathbf{.}$

Q.

Sam's cubicle is exactly of the shape of a cube with side 6 m. The total surface area of the cubicle neglecting the thickness is 196$m^2$​

1. True

2. False

Q.

The surface area of a box which is in the form of a cuboid whose dimensions are l $\times$ b $\times$ h is__________.

1. 2(lb + bh + hl)

2. lh + bh

3. lb + bh + hl

4. 2(lh + bh)

Q.

Find the length of the side of a cube whose surface area is $1536c{m}^2$.

1. $0.16m$

2. $16cm$

3. $1.6m$

4. $160cm$

Q.

Find the length of the side of a cube whose surface area is $1536c{m}^2$.

1. $0.16m$

2. $16cm$

3. $1.6m$

4. $160cm$

Q.

Find the length of the side of a cube whose total surface area is $1536c{m}^2$.

1. $1.6m$

2. $0.16cm$

3. $0.16m$

4. $160cm$

Q. The total surface area of a cube is 36 sq cm. Find the edge length of the cube.

1. 4√6 cm
2. 2√6 cm
3. √6 cm
4. 6 cm

Q. Three cubes whose edges are 3 cm, 4 cm and 5 cm respectively are melted to form a single cube. Find the surface area of the new cube.

1. $210c{m}^2$
2. $213c{m}^2$
3. $224c{m}^2$
4. $216c{m}^2$

Q. The total surface area of a cube is $5046m^2$. Find the edge length of the cube.
(2 marks)

Q. What is the total surface area of a cube with edge length of 1 cm?

1. 6 square centimeters
2. 8 square centimeters
3. 4 square centimeters
4. 5 square centimeters

Q. The ratio of the lateral surface area of a cube to its total surface area is __________.

1. 3 : 4
2. 4 : 5
3. 2 : 3
4. 2 : 5