# MCQ Questions | Class 8 Maths Chapter 11 | Mensuration with Answers

## MCQ | Mensuration Class 8

Check the below NCERT MCQ Questions for Class 8 Maths Chapter 11 Mensuration with Answers Pdf free download. MCQ Questions for Class 8 Maths with Answers were prepared based on the latest exam pattern. We have Provided Mensuration Class 8 Maths MCQs Questions with Answers to help students understand the concept very well.

### Objective Question | NCERT Maths Class 8

Book: National Council of Educational Research and Training (NCERT) Central Board of Secondary Education (CBSE) 8th Maths 11 Part-3 Mensuration English

#### Ncert Solutions for Class 8 Maths | Objective Type Questions

You can refer to NCERT Solutions for Class 8 Maths Chapter 11 Mensuration to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.
##### Mensuration | Class 8 Maths | NCERT Solutions
 Q1. CBSE Class 8 Maths Mcq Questions 8 persons can stay in a cubical room. Each person requires 27 m³ of air. The side of the cube is A. 6 m B. 4 m C. 3 m D. 2 m.
Ans: 6 m
Hint:
Volume = 8 × 27 = 216 m³
∴ side = $$\sqrt[3]{216}$$ = 6 m.
 Q2. CBSE Class 8 Maths Mensuration Mcq Questions If the height of a cuboid becomes zero, it will take the shape of a A. cube B. parallelogram C. circle D. rectangle.
Ans: rectangle.
 Q3. Class 8 Maths Mcq Chapter 11 The volume of a room is 80 m³. The area of the floor is 20 m². The height of the room is A. 1 m B. 2 m C. 3 m D. 4 m.
Ans: 4 m
Hint:
Height = $$\frac{80}{20}$$ = 4 m.
 Q4. Class 8 Maths Mcq online test The floor of a room is a square of side 6 m. Its height is 4 m. The volume of the room is A. 140 m³ B. 142 m³ C. 144 m³ D. 145 m³
Ans: 144 m³
Hint:
Volume = 6 × 6 × 4 = 144 m³.
 Q5. Class 8 Maths Mcq with answers The base radius and height of a right circular cylinder are 14 cm and 5 cm respectively. Its curved surface is A. 220 cm² B. 440 cm² C. 1232 cm² D. 2π × 14 × (14 + 5) cm²
Ans: 440 cm²
Hint:
Curved surface = 2 × $$\frac{22}{7}$$ × 14 × 5
= 440 cm².
 Q6. Learn Cbse Class 8 Maths Mcq The heights of two right circular cylinders are the same. Their volumes are respectively 16π m³ and 81π m³. The ratio of their base radii is A. 16 : 81 B. 4 : 9 C. 2 : 3 D. 9 : 4.
Ans: 4 : 9
Hint:
$$\frac{πr_1^2h}{πr_2^2h}$$ = $$\frac{16π}{81π}$$ ⇒ $$\frac{r_1}{r_2}$$ = $$\frac{4}{9}$$
 Q7. Mcq Class 8 Maths Chapter 11 The ratio of the radii of two right circular cylinders is 1 : 2 and the ratio of their heights is 4 : 1. The ratio of their volumes is A. 1 : 1 B. 1 : 2 C. 2 : 1 D. 4 : 1.
Ans: 1 : 1
Hint:
$$\frac{r_1}{r_2}$$ = $$\frac{π(1)^24}{π(2)^21}$$ = 1 : 1
 Q8. Mcq for Class 8 Maths Chapter 11 A glass in the form of a right circular cylinder is half full of water. Its base radius is 3 cm and height is 8 cm. The volume of water is A. 18π cm³ B. 36π cm³ C. 9π cm³ D. 36 cm³
Ans: 36π cm³
Hint:
Volume = $$\frac{1}{2}$$π × 3 × 3 × 8 = 36π cm³.
 Q9. Mcq Questions for Class 8 Maths with answers pdf Chapter 11 The base area of a right circular cylinder is 16K cm³. Its height is 5 cm. Its curved surface area is A. 40π cm² B. 30π cm² C. 20π cm² D. 10π cm²
Ans: 40π cm²
Hint:
πr² = 16π ⇒ r = 4 cm
∴ Curved surface area
= 2 × π × 4 × 5 = 40π cm²
 Q10. Mcq Questions for Class 8 Maths with answers pdf download The base radius and height of a right circular cylinder are 5 cm and 10 cm. Its total surface area is A. 150π cm² B. 300π cm² C. 150 cm² D. 300 cm²
Ans: 150π cm²
Hint:
Total surface area = 2πr (h + r)
= 2π 5 (10 + 5) = 150π cm².
 Q11. Ncert Class 8 Maths Mcq Chapter 11 If the length and breadth of a rectangle are 10 cm and 5 cm, respectively, then its area is: A. 100 sq.cm B. 150 sq.cm C. 115 sq.cm D. 200 sq.cm
Ans: 150 sq.cm
Hint:
Length = 10 cm
Area of rectangle = Lenght x breadth
= 10 x 5
= 150 cm2
 Q12. Ncert Class 8 Maths Mcq Questions The area of a rhombus whose diagonals are of lengths 10 cm and 8.2 cm is: A. 41 cm2 B. 82 cm2 C. 410 cm2 D. 820 cm2
Ans: 41 cm2
Hint:
Area of rhombus = ½ d1 d2
A = ½ x 10 x 8.2
A = 41 cm2
 Q13. CBSE Class 8 Maths Chapter 11 Mcq The area of a trapezium is 480 cm2, 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
Ans: 44 cm
Hint:
Area of trapezium = ½ h (a + b)
a=20 cm, h = 15 cm, Area = 480 sq.cm
480 = ½ (15) (20 + b)
20 + b = (480 x 2)/15
20 + b = 64
b = 44cm
 Q14. CBSE Class 8 Maths Chapter 11 Mcq Questions The area of a rhombus is 240 cm2 and one of the diagonals is 16 cm. Find the other diagonal. A. 16 cm B. 20 cm C. 30 cm D. 36 cm
Ans: 30 cm
Hint:
Area = 240 cm2
d1 = 16 cm
Area of rhombus = ½ d1 x d2
240 = ½ x 16 x d2
d2 = 480/16 = 30 cm
 Q15. CBSE Class 8 Maths Mensuration Mcq A cuboid has ______ pairs of identical faces. A. 2 B. 3 C. 4 D. 5
Ans: 3
Hint:
All six faces are rectangular, and opposites faces are identical. So there are three pairs of identical faces.
 Q16. CBSE Class 8 Maths Mcq Questions All six faces of a cube are: A. Identical B. Different C. Circular D. Rectangular
Ans: Identical
Hint:
All six faces are squares and identical
 Q17. CBSE Class 8 Maths Mensuration Mcq Questions A cylindrical box has ____ curved surface and ____ circular faces, which are identical. A. One, One B. One, two C. two, one D. two, two
Ans: One, two
Hint:
A cylindrical box having circular bases have identical top. One curved surface and two circular faces which are identical.
 Q18. Class 8 Maths Mcq Chapter 11 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 cm2 B. 1200 cm2 C. 1300 cm2 D. 1400 cm2
Ans: 1300 cm2
Hint:
Total surface area = 2 (20 × 15 + 20 × 10 + 10 × 15)
TSA = 2 ( 300 + 200 + 150) = 1300 cm2
 Q19. Class 8 Maths Mcq online test The height of a cylinder whose radius is 7 cm and the total surface area is 968 cm2 is: A. 15 cm B. 17 cm C. 19 cm D. 21 cm
Ans: 15 cm
Hint:
Total surface area = 2πr (h + r)
968 = 2 x 22/7 x 7 (7+h)
h = 15 cm
 Q20. Class 8 Maths Mcq with answers The height of a cuboid whose volume is 275 cm3 and base area is 25 cm2 is: A. 10 cm B. 11 cm C. 12 cm D. 13 cm
Ans: 11 cm
Hint:
Volume of a cuboid = Base area × Height
Height = Volume / Base area
H = 275/25 = 11 cm