CBSE Class 9 Mathematics Surface Areas and Volumes Online Test Set B

  Refer to CBSE Class 9 Mathematics Surface Areas and Volumes Online Test Set B below. Students of Class 9 can refer to the full list of free Class 9 Surface areas and Volumes Mock Test provided by StudiesToday. These MCQ based online mock tests for Surface areas and…

CBSE Class 9 Mathematics Surface Areas and Volumes Online Test Set A

  Refer to CBSE Class 9 Mathematics Surface Areas and Volumes Online Test Set A below. Students of Class 9 can refer to the full list of free Class 9 Surface areas and Volumes Mock Test provided by StudiesToday. These MCQ based online mock tests for Surface areas and…

NCERT Solutions Class 9 Mathematics Chapter 13 Surface Area and Volume

Exercise 13.1 Q.1) A plastic box 1.5 𝑚 long, 1.25 𝑚 wide and 65 𝑐𝑚 deep is to be made. It is opened at the top. Ignoring the thickness of the plastic sheet, determine: (i) The area of the sheet required for making the box. (ii) The cost of sheet for it, if a sheet…

CBSE Class 9 Maths Surface Areas and Volumes MCQs

Question: Each side of a cube is increased by 50%. Then the surface area of the cube increases by a) 50% b) 100% c) 150% d) 125% Answer: 50% Question: Instead of walking along two adjacent sides of a rectangular field, a boy took a short cut along the diagonal and saved…

CBSE Class 9 Mathematics Surface areas and Volumes Assignment Set A

Question. If volume and surface area of a sphere are numerically equal, find its radius. (A) 2 units (B) 3 units (C) 4 units (D) 5 units Answer : B Question. The base radius of a cylinder is 1(2/3) times its height. The cost of painting it s C.S.A. at 2 paise/…

CBSE Class 9 Mathematics Surface Areas And Volumes Worksheet Set D

Question. The radius of a sphere (in cm) whose volume is 12π cm3, is  (a) 3 (b) 3√3 (c) 32/3 (d) 31/3 Answer : C Question. If the surface area of a sphere is 144π, then its radius is (a) 6 cm (b) 8 cm (c) 12 cm (d) 10 cm Answer : A Question. The edge of a cube whose…

CBSE Class 9 Mathematics Surface Areas And Volumes Notes

  CBSE Class 9 Concepts for Surface Areas and Volumes. Learning the important concepts is very important for every student to get better marks in examinations. The concepts should be clear which will help in faster learning. The attached concepts made as per NCERT and…

CBSE Class 9 Mathematics Surface areas and Volumes Assignment Set B

Question.  The diamet er of two cones are equal. If their slant heights are in the ratio 5 : 4, find the ratio of their curved surface areas. (A) 2:3 (B) 4:5 (C) 5:4 (D) 3 :2 Answer : A Question. The circumference of the base of a 9 m high wooden solid…

CBSE Class 9 Mathematics Surface Areas And Volumes Worksheet Set A

Question. The surface area of a cube whose side is 5 cm is (a) 125 cm2 (b) 28 cm2 (c) 100 cm2 (d) 150 cm2 Answer : D Question. The total surface area of a cone of radius ‘2r’ and slant height ‘l/2’ is (a) 2πr (l + r) (b) πr(l + r/4) (c) πr (4r + l) (d) 2πr Answer : C…

CBSE Class 9 Mathematics Surface Areas And Volume VBQs

Question. If the height of a cylinder is doubled, by what number must the radius of the base be multiplied so that the resulting cylinder has the same volume as the original cylinder? (A) 4 (B) 1/2 (C) 2 (D) 1/2 Answer : B Question. A hemispherical bowl is…

CBSE Class 9 Mathematics Surface areas and Volumes Assignment Set C

Surface Areas and Volumes Q 1 Find the area enclosed between two concentric circles of radii 4 cm and 3 cm.Q 2 The diameter of a garden roller is 1.4 m and it is 2 m long. How much area will it cover in 5 revolutions?Q 3 A cuboid has total surface area of 40 sq m and its…

CBSE Class 9 Mathematics Surface areas and Volumes Assignment Set D

Section - A Q.1  A cuboidal oil tin is 30cm X 40cm X 50cm. Find the cost of the tin required for making 20 such tins if the cost of tin sheet is Rs. 20/m2. Q.2  Find the lateral curved surface area of a cylindrical petrol storage tank that is 4.2m in diameter and 4.5m high.…