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Home/surface areas and volumes

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Anand Singh
Anand Singh
Asked: November 5, 2020In: Class 9

A plastic box 1.5 m long, 1.25 m wide and 65 cm deep is to be made. It is to be open at the top. Ignoring the thickness of the plastic sheet, determine:

NCERT Solutions for Class 9 Maths Chapter 13 Important NCERT Questions Surface Areas and Volumes NCERT Books for Session 2022-2023 CBSE Board, UP Board and Other state Boards EXERCISE 13.1 Page No:213 Questions No:1 (i) The area of the sheet required ...

2020-2021cbsechapter 13class 9mathematicsncertsurface areas and volumes
  • 2 2 Answers
  • 142 Views
  • 6 Votes
Answer
Anand Singh
Anand Singh
Asked: November 5, 2020In: Class 9

The length, breadth and height of a room are 5 m, 4 m and 3 m respectively. Find the cost of white washing the walls of the room and the ceiling at the rate of Rs 7.50 per m².

NCERT Solutions for Class 9 Maths Chapter 13 Important NCERT Questions Surface Areas and Volumes NCERT Books for Session 2022-2023 CBSE Board, UP Board and Other state Boards EXERCISE 13.1 Page No:213 Questions No:2

2020-2021cbsechapter 13class 9mathematicsncertsurface areas and volumes
  • 2 2 Answers
  • 132 Views
  • 7 Votes
Answer
Anand Singh
Anand Singh
Asked: November 5, 2020In: Class 9

The floor of a rectangular hall has a perimeter 250 m. If the cost of painting the four walls at the rate of Rs 10 per m² is Rs 15000, find the height of the hall.

NCERT Solutions for Class 9 Maths Chapter 13 Important NCERT Questions Surface Areas and Volumes NCERT Books for Session 2022-2023 CBSE Board, UP Board and Other state Boards EXERCISE 13.1 Page No:213 Questions No:3

2020-2021cbsechapter 13class 9mathematicsncertsurface areas and volumes
  • 2 2 Answers
  • 200 Views
  • 7 Votes
Answer
Jagannath Dixit
Jagannath Dixit
Asked: November 5, 2020In: Class 9

Find the radius of a sphere whose surface area is 154 cm².

NCERT Solutions for Class 9 Maths Chapter 13 Important NCERT Questions Surface Areas and Volumes NCERT Books for Session 2022-2023 CBSE Board, UP Board and Other state Boards EXERCISE 13.4 Page No:225 Questions No:6

2020-2021cbsechapter 13class 9mathematicsncertsurface areas and volumes
  • 2 2 Answers
  • 192 Views
  • 7 Votes
Answer
Jagannath Dixit
Jagannath Dixit
Asked: November 5, 2020In: Class 9

A hemispherical bowl made of brass has inner diameter 10.5 cm. Find the cost of tin-plating it on the inside at the rate of Rs 16 per 100 cm².

NCERT Solutions for Class 9 Maths Chapter 13 Important NCERT Questions Surface Areas and Volumes NCERT Books for Session 2022-2023 CBSE Board, UP Board and Other state Boards EXERCISE 13.4 Page No:225 Questions No:5

2020-2021cbsechapter 13class 9mathematicsncertsurface areas and volumes
  • 2 2 Answers
  • 242 Views
  • 6 Votes
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