# Total Surface Area of a Cuboid

## Trending Questions

**Q.**Question 28

If each side of a rhombus is doubled, how much will its area increase?

(a) 1.5 times

(b) 2 times

(c) 3 times

(d) 4 times

**Q.**

Find the surface area of the following figure if it is folded along the dotted lines. (all the measurements are in cm)

215

- 240
- 200
- 220

**Q.**

Which of the following is an oblique sketch of a cube of edge 4 cm?

**Q.**

If each edge of a cube is increased by 50%, find the percentage increase in its surface area.

**Q.**If the dimensions of a cuboid are 3 cm, 4 cm and 6 cm, then its surface area (in sq. cm) is:

- 26
- 61
- 72
- 108

**Q.**

A steel box has dimensions of 2 m, 3 m, and 0.5 m. It has to be gold plated using electrolysis. If each square metre of gold plating costs Rs.100, then gold plating the outer surface of the box costs.

Rs.3000

Rs.1700

Rs.1500

Rs.3400

**Q.**

Which of the following option is correct?

S1 : Total surface area of a cuboid is the sum of areas of 4 faces excluding top and bottom faces.

S2 : Lateral surface area of a cuboid is the sum of areas of 4 faces excluding top and bottom faces.

S3 : Area of a face of a cuboid is of the form xy, where x and y are its length and breadth respectively.

S1 , S3 are true

S2 , S3 are false

S2 and S3 are true

S1 and S3 are false

**Q.**

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

2(lb + bh + hl)

2(lh + bh)

lh + bh

lb + bh + hl

**Q.**

The total surface area in m2 of a cuboid with dimensions of 26m, 14m and 6.5m respectively is

**Q.**

The ratio of surface areas of 1 cube of volume 64 cm3 and 64 cubes of volume 1 cm3 is

1: 2

1: 3

1: 4

1: 1

**Q.**

The areas of three faces of a cuboid are 15, 20, 12 cm2. What are the possible values of the height of the cuboid in cms?

8, 6, 9

3, 4, 6

4, 5, 6

5, 4, 3

**Q.**4. A road roller takes 750 revolutions to move once over to level a road.Find the area of the road if the diameter of road roller is 84cm and length is 1m.

**Q.**The sum of length, breadth and depth of a cuboid is 19 cm and its diagonal is 5\sqrt5 cm. Its surface area

**Q.**1. If the radii of the ends of bucket, 45 cm high are 28 cm and 7 cm.Find the capacity and the lateral surface area of the bucket

**Q.**

The total surface area in m2 of a cuboid with dimensions 26 m×14 m×6.5 m is

**Q.**

Sachin wants to make a pet house for his dog with length, breadth and height of 3m, 2m and 1m respectively. What is the area of walls inside the pet house that has to be painted?

**Q.**

If AC = 10cm, PC=15cm and AB=6cm. Find PB?

6cm

7cm

8cm

9cm

**Q.**There are 2 identical cubes each having a total surface area equal to '6 cm2'. Find the total surface area of the solid obtained by joining these 2 cubes end to end.

- 8 cm2
- 10 cm2
- 12 cm2
- 9 cm2

**Q.**The length of the diagonal of a cube is $6\sqrt{3}\mathrm{cm}$. Its total surface area is

(a) 144 cm

^{2}

(b) 216 cm

^{2}

(c) 180 cm

^{2}

(d) 108 cm

^{2}

**Q.**

A steel box has dimensions of 2 m, 3 m and 0.5 m. It has to be gold plated using electrolysis. If each square metre of gold plating costs Rs.100, then find the cost of gold plating the outer surface of the box.

Rs.1500

Rs.1700

Rs.3000

Rs.3400

**Q.**The ratio of surface areas of 1 cube of volume 64 cm3 and 64 cubes of volume 1 cm3 is

- 1 : 1
- 1 : 4
- 4:1
- 1:16

**Q.**

Find the area of the figure by splitting them into rectangles and squares.

**Q.**A fish tank is in the form of a cuboid, external measure of that cuboid are 80 cm $\times $ 40 cm $\times $ 30 cm. The base, side faces and back face are to be covered with a coloured paper. Find the area of the paper needed.

**Q.**

If 'l', 'b', and 'h' are the length, breadth, and height of the rectangular box respectively, then the product of the areas of all the faces of the box is equal to

the volume of the box

the square root of the volume

twice the volume

square of the volume

**Q.**Surface area of a cuboid is 2(bh + hl) where l, b, h are repectively length, breadth and height of the cuboid.

- False
- True

**Q.**The total surface area of a cube is 864 cm

^{2}. Its volume is

(a) 3456 cm

^{3}

(b) 432 cm

^{3}

(c) 1728 cm

^{3}

(d) 3456 cm

^{3}

**Q.**

If 'l', 'b', and 'h' are the length, breadth, and height of the rectangular box respectively, then the product of the areas of all the faces of the box is equal to

the volume of the box

the square root of the volume

twice the volume

square of the volume

**Q.**11. If every side of a cuboid is increased by k x of its original then the surface area of the new new cuboid will become will become times of original surface area

**Q.**The diagonal of a cube measures 4√3 cm. Its volume is

- 8 cm3
- 64 cm3
- 16 cm3
- 27 cm3

**Q.**

A rectangular cardboard of dimension 20 m × 10 m is placed on a table. 4 squares of side 2.5 m are cut out from the corners and the 4 sides are folded . Find the surface area of the resulting figure which is to be painted on all the sides.

175

- 155
- 180
- 100