Class 9 Exam > Class 9 Notes > Surface Areas and Volumes - MCQ with Solution, Class 9 Maths
Surface Areas and Volumes - MCQ with Solution, Class 9 Maths PDF Download
1. Lateral surface area of a cylinder
(a) πr²h
b) 2πrh
c) 2πr[r+h]
2.Total surface area of a cylinder
(a) 2πrh
b) 2πr²h
c) 2πr[r+h]
3. When the radius is doubled surface area of a cylinder increases by ___ times .
(a) 2
b) 4
c) 6
d) 8
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4.When the height is doubled the lateral surface area of a cylinder increases by ---- times .
(a) 2
b) 4
c) 6
d) 8
5.There are 2 cuboid boxes having measurements 60x40x50 and 50x50x50 .Which box requires the lesser amount of material to make .
(a) 60 x 40 x 50
b) 50x50x50
c) both same .
6.Surface area of a cube having side 6cm
(a) 6
b) 6²
c) 6³
d) none of these
7.Total surface area of a cuboid includes the area of
(a) 4 faces
b) 2 faces
c) 6 faces
d) 3 faces
8.Ratio between the lateral area and base area of a cuboid
(a) 1:2
b) 2: 1
c) 4:1
d) 1:4
9. Lateral surface area of a cuboid
(a) Base area x height
b) Base perimeter x height
c) volume/2
10. Two cubes each with side b are joined to form a cuboid . What is the surface area of this Cuboid
(a) 12b²
b)10b²
c) 18b²
d) none of these .
11. Base perimeter of a room is 34m and the height of the room is 10m . Find the area of the four side walls .
(a) 34x10 m²
b) 2x34x10 m²
c)34x10x10 m²
d)none of these.
12. The curved surface area of a cylinder is 100πm². Length of the cylinder is 10 m . Find its Radius .
(a) 10m
b) 5m
c) 20m
d) none of these
Solution:
1) b 2) c 3) b 4) a 5) c 6) c 7) c 8) c 9) b 10) b 11) a 12) b
FAQs on Surface Areas and Volumes - MCQ with Solution, Class 9 Maths
| 1. What are the topics covered in the Surface Areas and Volumes chapter of Class 9 Maths? |  |
Ans. The Surface Areas and Volumes chapter of Class 9 Maths covers topics such as the surface area and volume of cuboids, cubes, cylinders, cones, and spheres.
| 2. What are some real-life applications of surface area and volume concepts? | |
Ans. Surface area and volume concepts have real-life applications in various fields such as architecture, engineering, construction, and manufacturing. For example, architects use these concepts to design buildings, engineers use them to design machines and vehicles, and manufacturers use them to design packaging materials.
| 3. How can I prepare for the Surface Areas and Volumes exam? | |
Ans. To prepare for the Surface Areas and Volumes exam, students should practice solving different types of problems related to the topics covered in the chapter. They can also refer to the NCERT textbook and other study materials available online for additional practice.
| 4. What are some common mistakes students make while solving surface area and volume problems? | |
Ans. Some common mistakes students make while solving surface area and volume problems include confusing the formulas for different shapes, forgetting to convert the units of measurement, and not using the correct formula for finding the required value.
| 5. Are there any online resources available for learning and practicing surface area and volume concepts? | |
Ans. Yes, there are many online resources available for learning and practicing surface area and volume concepts. Some popular websites include Khan Academy, BYJU'S, and TopperLearning, which offer video lessons, interactive quizzes, and practice tests to help students improve their understanding and skills.
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