Home | | Maths 9th std | Exercise 7.2: Surface Area of Cuboid and Cube

Numerical Problems with Answers, Solution | Mensuration | Maths - Exercise 7.2: Surface Area of Cuboid and Cube | 9th Maths : UNIT 7 : Mensuration

Chapter: 9th Maths : UNIT 7 : Mensuration

Exercise 7.2: Surface Area of Cuboid and Cube

Maths : Mensuration: Book Back, Exercise, Example Numerical Question with Answers, Solution: Exercise 7.2: Surface Area of Cuboid and Cube

Surface Area of Cuboid and Cube

Exercise 7.2

1. Find the Total Surface Area and the Lateral Surface Area of a cuboid whose dimensions are: length = 20 cm, breadth = 15 cm and height = 8 cm



2. The dimensions of a cuboidal box are 6 m × 400 cm × 1.5 m. Find the cost of painting its entire outer surface at the rate of ₹22 per m2.



3. The dimensions of a hall is 10 m × 9 m × 8 m. Find the cost of white washing the walls and ceiling at the rate of ₹8.50 per m2.



4. Find the TSA and LSA of the cube whose side is (i) 8 m (ii) 21 cm (iii) 7.5 cm



5. If the total surface area of a cube is 2400 cm2 then, find its lateral surface area.



6. A cubical container of side 6.5 m is to be painted on the entire outer surface. Find the area to be painted and the total cost of painting it at the rate of ₹24 per m2.



7. Three identical cubes of side 4 cm are joined end to end. Find the total surface area and lateral surface area of the new resulting cuboid.



Tags : Numerical Problems with Answers, Solution | Mensuration | Maths , 9th Maths : UNIT 7 : Mensuration
Study Material, Lecturing Notes, Assignment, Reference, Wiki description explanation, brief detail
9th Maths : UNIT 7 : Mensuration : Exercise 7.2: Surface Area of Cuboid and Cube | Numerical Problems with Answers, Solution | Mensuration | Maths


Privacy Policy, Terms and Conditions, DMCA Policy and Compliant

Copyright © 2018-2024 BrainKart.com; All Rights Reserved. Developed by Therithal info, Chennai.