Welcome to your Surface Areas and Volumes of Solid Shapes(Study by Topics Junior Class) NAME EMAIL PHONE NUMBER 1. What is the unit for surface area? Units^2 Units^2.2 Units^3 Units^3.14 None 2. What is the surface area of the cone below? 1340.41 742.42 703.72 3446.4 None 3. If you enlarge a rectangular prism with dimensions of 1 cm. by 2 cm. by 3 cm. by a scale factor of 3, what will its new dimensions be? 3 cm. by 4 cm. by 10 cm. 3 cm. by 5 cm. by 6 cm. 3 cm. by 6 cm. by 9 cm. 3 cm. by 15 cm. by 26 cm. None 4. The ratio of the radii of two cylinders whose heights are equal is 2 : 3. If the volume of the smaller cylinder is 32cm^{2}, find the volume of the bigger one. 72cm³ 27cm³ 81cm³ 108cm³ None 5. Which of the following gives the volume of a cylinder of height ‘h’ cm and base radius ‘r’ cm? πrh 2πr²h 2πrh ¼πr²h πr²h None 6. The length of the longest rod that can be placed in a cuboidal room of dimensions 20 cm, 12 cm and 9 cm: 25 cm 28 cm 32 cm 35 cm None 7. What type of prism is a cuboid? Triangular Rectangular Circular Conical Spherical None 8. Three solid spheres of diameters 6 cm. 8 cm and 10 cm are melted to form a single solid sphere. The diameter of the new sphere is: 3 cm 6 cm 4.5 cm 12 cm None 9. What is the surface area of the cyliner? 804.25 2412.74 96 1005.31 None 10. A solid sphere of radius r cm is melted and recast into the shape of solid cone of height r. The radius of the base of the cone is: 4r R 3r 2r None 11. A cylinder, a cone and a hemisphere are of the same base and of the same height. The ratio of their volumes is: 3 : 2 : 1 1 : 2 : 3 2 : 1 : 3 3 : 1 : 2 None 12. Volume of the cone is: πr²h 4/3 πr³ 2/3 πr³ 1/3 πr²h None 13. What is the Volume of the prism below: 420 179 210 358 None 14. The volume and the curved surface area of a sphere are numerically equal, then the radius of sphere is: 3 units 1 unit 2 units 0 units None 15. How many edges has a cuboid? 12 16 10 18 8 None 16. How many edges has a cube? 12 10 8 16 None 17. An open cylindrical drum has a circular base of radius 1¾m. its height is 1.5m. calculate the total surface area 26m² 20m² 11m² 18m² None 18. What is the shape of the plane face of a cylinder? Rectangle Square Triangle Circle None 19. The surface area of a cylinder is 31cm^{2}. The surface area of a similar cylinder three times as high is 62cm² 93cm² 34cm² 124cm² None 20. The length of the diagonal of a cube inscribed in a sphere of radius 10 cm is: 15 cm 20 cm 10 cm 5 cm None 1 out of 20 Time's upTime is Up!