# Class 8 Maths Chapter 11 Mensuration MCQs

**Class 8 Maths Chapter 11 – Mensuration MCQs (Questions and Answers)** are available online with explanations for students. These multiple-choice questions are formulated by experts, according to the CBSE syllabus **(2021-2022**) and NCERT curriculum. The objective questions are given chapter-wise at BYJU’S to make all the students learn each concept and lead them to score better marks in exams. Also, learn important questions for class 8 Maths here.

Practice more and test your skills on Class 8 Maths Chapter 11 Mensuration MCQs with the given PDF here.

## MCQs Questions on Class 8 Chapter 11 Mensuration

Multiple choice questions (MCQs) are given for the Class 8 Mensuration chapter.

**1. Area of a triangle with base (b) and height (h) is:**

A. b.h

B. ½ b.h

C. 2b.h

D. None of these

Answer: B. ½ b.h

**2. Area of the square with side-length ‘a’ is:**

A. 2a

B. 4a

C. a/2

D. a^{2}

Answer: D. a^{2}

**3. The area of a parallelogram with length (l) and breadth (b) is:**

A. ½ lb

B. 2lb

C. lb

D. (lb)^{2}

Answer: C. lb

**4. Area of a circle with radius ‘r’ is:**

A. πr²

B. ½ πr²

C. 2πr²

D. 4πr²

Answer: A. πr²

**5. 1 cm is equal to how many millimeters?**

A. 10

B. 100

C. 1/10

D. 1/100

Answer: A. 10

1 cm = 10 mm

**6. Surface area of cube of edge ‘a’ is:**

A. 4a²

B. 6a²

C. 3a²

D. a²

Answer: B. 6a²

**7. Volume of a cuboid of length (l), width (w) and height (h) is:**

A. lbh

B. lb + bh + hl

C. 2 (lb + bh + hl)

D. 2 (l + b) h

Answer: A. lbh

**8. Volume of a cylinder with base radius = r and height = h, is:**

A. 2πrh

B. πr²h

C. 2πr (r + h)

D. 1/3 πr²h

Answer: B. πr²h

**9. 1 litre is equal to how many cubic centimeters?**

A. 10 cu.cm

B. 100 cu.cm

C. 1000 cu.cm

D. 10000 cu.cm

Answer: C. 1000 cu.cm

**10. The perimeter of a rectangle with length (l) and width (w) is:**

A. l+w

B. 2(l+w)

C. (l+w)^{2}

D. lw

Answer: B. 2(l+w)

**11. If the length and breadth of a rectangle are 15cm and 10cm, respectively, then its area is:**

A. 100 sq.cm

B. 150 sq.cm

C. 115 sq.cm

D. 200 sq.cm

Answer: **B**

Explanation: Length = 15 cm

And breadth = 10 cm

Area of rectangle = Length x breadth

= 15 x 10

= 150 cm^{2}

**12. The area of a rhombus whose diagonals are of lengths 10 cm and 8.2 cm is:**

A. 41 cm^{2}

B. 82 cm^{2}

C. 410 cm^{2}

D. 820 cm^{2}

Answer: **A**

Explanation: Area of rhombus = ½ d_{1} d_{2}

A = ½ x 10 x 8.2

A = 41 cm^{2}

**13. The area of a trapezium is 480 cm ^{2}, the distance between two parallel sides is 15 cm and one of the parallel side is 20 cm. The other parallel side is:**

A. 20 cm

B. 34 cm

C. 44 cm

D. 50 cm

Answer: **C**

Explanation: Area of trapezium = ½ h (a+b)

a=20cm, h = 15cm, Area = 480 sq.cm

480 = ½ (15) (20+b)

20+b = (480 x 2)/15

20+b=64

b=44cm

**14. The area of a rhombus is 240 cm ^{2} and one of the diagonals is 16 cm. Find the other diagonal.**

A. 16 cm

B. 20 cm

C. 30 cm

D. 36 cm

Answer: **C**

Explanation: Area = 240 cm^{2}

d_{1} = 16 cm

Area of rhombus = ½ d_{1} x d_{2}

240 = ½ x 16 x d_{2}

d_{2} = 480/16 = 30 cm

**15. A cuboid has ______ pairs of identical faces.**

A. 2

B. 3

C. 4

D. 5

Answer: **B**

Explanation: All six faces are rectangular, and opposites faces are identical. So there are three pairs of identical faces.

**16. All six faces of a cube are:**

A. Identical

B. Different

C. Circular

D. Rectangular

Answer: **A**

Explanation: All six faces are squares and identical

**17. A cylindrical box has ____ curved surface and ____ circular faces, which are identical.**

A. One, One

B. One, two

C. two, one

D. two, two

Answer: **B**

Explanation: A cylindrical box having circular bases have identical top. One curved surface and two circular faces which are identical.

**18. If a cuboidal box has height, length and width as 20 cm, 15 cm and 10 cm respectively. Then its total surface area is:**

A. 1100 cm^{2}

B. 1200 cm^{2}

C. 1300 cm^{2}

D. 1400 cm^{2}

Answer: **C**

Explanation: Total surface area = 2 (20 × 15 + 20 × 10 + 10 × 15)

TSA = 2 ( 300 + 200 + 150) = 1300 cm^{2}

**19. The height of a cylinder whose radius is 7 cm and the total surface area is 968 cm ^{2} is:**

A. 15 cm

B. 17 cm

C. 19 cm

D. 21 cm

Answer: **A**

Explanation: Total surface area = 2πr (h + r)

968 = 2 x 22/7 x 7 (7+h)

h = 15 cm

**20. The height of a cuboid whose volume is 275 cm ^{3} and base area is 25 cm^{2} is:**

A. 10 cm

B. 11 cm

C. 12 cm

D. 13 cm

Answer: **B**

Explanation: Volume of a cuboid = Base area × Height

Height = Volume / Base area

H = 275/25 = 11 cm