Hsslive.co.in: Kerala Higher Secondary News, Plus Two Notes, Plus One Notes, Plus two study material, Higher Secondary Question Paper.

Tuesday, June 28, 2022

BSEB Class 9 Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Textbook Solutions PDF: Download Bihar Board STD 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Book Answers

BSEB Class 9 Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Textbook Solutions PDF: Download Bihar Board STD 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Book Answers
BSEB Class 9 Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Textbook Solutions PDF: Download Bihar Board STD 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Book Answers


BSEB Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Textbooks Solutions and answers for students are now available in pdf format. Bihar Board Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Book answers and solutions are one of the most important study materials for any student. The Bihar Board Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 books are published by the Bihar Board Publishers. These Bihar Board Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 textbooks are prepared by a group of expert faculty members. Students can download these BSEB STD 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 book solutions pdf online from this page.

Bihar Board Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Textbooks Solutions PDF

Bihar Board STD 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Books Solutions with Answers are prepared and published by the Bihar Board Publishers. It is an autonomous organization to advise and assist qualitative improvements in school education. If you are in search of BSEB Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Books Answers Solutions, then you are in the right place. Here is a complete hub of Bihar Board Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 solutions that are available here for free PDF downloads to help students for their adequate preparation. You can find all the subjects of Bihar Board STD 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Textbooks. These Bihar Board Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Textbooks Solutions English PDF will be helpful for effective education, and a maximum number of questions in exams are chosen from Bihar Board.

Bihar Board Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Books Solutions

Board BSEB
Materials Textbook Solutions/Guide
Format DOC/PDF
Class 9th
Subject Maths Chapter 13 Surface Areas and Volumes Ex 13.4
Chapters All
Provider Hsslive


How to download Bihar Board Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Textbook Solutions Answers PDF Online?

  1. Visit our website - Hsslive
  2. Click on the Bihar Board Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Answers.
  3. Look for your Bihar Board STD 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Textbooks PDF.
  4. Now download or read the Bihar Board Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Textbook Solutions for PDF Free.


BSEB Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Textbooks Solutions with Answer PDF Download

Find below the list of all BSEB Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Textbook Solutions for PDF’s for you to download and prepare for the upcoming exams:

BSEB Bihar Board Class 9th Maths Solutions Chapter 13 Surface Areas and Volumes Ex 13.4

Question 1.
Find the surface area of a sphere of radius : (i) 10.5 cm (ii) 5.6 cm (iii) 14 cm
Solution:
(i) We have : r – radius of the sphere = 10.5 cm
Surface area = 4πr²
= ( 4 x 227 x 10.5 x 10.5 )cm² = 1386 cm²

(ii) We have : r = radius of the sphere = 5.6 cm
Surface area = 4πr²
= (4 x 227 x 5.6 x 5.6) x cm²
= 394.24 cm²

(iii) We have : r = radius of the sphere = 14 cm
Surface area = (4 x 227 x 14 x 14) cm² = 2464 cm²

Question 2.
Find the surface area of a sphere of diameter :
(i) 14 cm
(ii) 21 cm
(iii) 3.5 m
Solution:
(i) Here r = 142 cm = 7 cm
Surface area = 4πr²
= (4 x 227 x 7 x 7) cm² = 616 cm²

(ii) Here r = 212 cm = 10.5 cm
∴ Surface area = 4πr²
= (4 x 227 x 10.5 x 10.5) cm² = 1386 cm²

(iii) Here r = 3.52 cm = 1.75 cm
∴ Surface area = 4πr²
= (4 x 227 x 1.75 x 1.75) cm² = 38.5 cm²

Question 3.
Find the total surface area of a hemisphere of radius 10 cm. (Use π = 3.14)
Solution:
Here r = 10 cm
Total surface area of hemisphere
= 3πr² = (3 x 3.14 x 10 x 10) cm²
= 942 cm²

Question 4.
The radius of a spherical balloon increases from 7 cm to 14 cm as air is being pumped into it. Find the ratio of surface areas of the balloon in the two cases.
Solution:
Let r1 and r2 be the radius of balloons in the two cases.
Here r1 = 7 cm and r2 = 14 cm

Thus, the required ratio of their surface areas =1 : 4

Question 5.
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. ‘
Solution:
Here r = (10.52) cm = 5.25 cm
Curved surface area of the hemisphere
= 2πr² = (2 x 227 x 5.25 x 5.25) cm²
= 173.25 cm²
Rate of tin-plating is Rs 16 per 100 cm²
∴ Cost of tin-plating the hemisphere
= Rs ( 173.25 x 16100] = Rs 27.72

Question 6.
Find the radius of a sphere whose surface area is 154 cm².
Solution:
Let r be the radius of the sphere.

Thus, the radius of the sphere is 3.5 cm.

Question 7.
The diameter of the moon is approximately one fourth of the diameter of the earth. Find the ratio of their surface areas.
Solution:
Let the diameter of earth be R and that of the moon will be 𝑅4
The Radii of moon and earth are 𝑅8 and 𝑅2 respectively.

Question 8.
A hemispherical bowl is made of steel, 0.25 cm thick. The inner radius of the bowl is 5 cm. Find the outer curved surface area of the bowl.
Solution:
Inner radius, r = 5 cm
Thickness of steel = 0.25 cm
∴ Outer radius, R = (r + 0.25) cm = (5 + 0.25) cm = 5.25
∴ Outer Curved surface= 2πR²
= (2 x 227 x 5.25 x 5.25) cm²
= 173.25 cm².

Question 9.
A right circular cylinder just encloses a sphere of radius r (see figure).

Find
(i) surface area of the sphere,
(ii) curved surface area of the cylinder,
(iii) ratio of the areas obtained in (i) and (ii)
Solution:
(i) The radius of the sphere r, so its surface area = 4πr²

(ii) Since the right circular cylinder just encloses a sphere of radius r. So, the radius of cylinder = r and its height = 2r
Curved surface of cylinder = 2πr (2r) [∵ r = r, h = r]
= 4πr²

(iii) Ratio of areas = 4πr² : 4πr² =1 : 1


BSEB Textbook Solutions PDF for Class 9th


Bihar Board Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Textbooks for Exam Preparations

Bihar Board Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Textbook Solutions can be of great help in your Bihar Board Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 exam preparation. The BSEB STD 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Textbooks study material, used with the English medium textbooks, can help you complete the entire Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Books State Board syllabus with maximum efficiency.

FAQs Regarding Bihar Board Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Textbook Solutions


How to get BSEB Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Textbook Answers??

Students can download the Bihar Board Class 9 Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Answers PDF from the links provided above.

Can we get a Bihar Board Book PDF for all Classes?

Yes you can get Bihar Board Text Book PDF for all classes using the links provided in the above article.

Important Terms

Bihar Board Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4, BSEB Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Textbooks, Bihar Board Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4, Bihar Board Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Textbook solutions, BSEB Class 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Textbooks Solutions, Bihar Board STD 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4, BSEB STD 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Textbooks, Bihar Board STD 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4, Bihar Board STD 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Textbook solutions, BSEB STD 9th Maths Chapter 13 Surface Areas and Volumes Ex 13.4 Textbooks Solutions,
Share:

0 Comments:

Post a Comment

Plus Two (+2) Previous Year Question Papers

Plus Two (+2) Previous Year Chapter Wise Question Papers, Plus Two (+2) Physics Previous Year Chapter Wise Question Papers , Plus Two (+2) Chemistry Previous Year Chapter Wise Question Papers, Plus Two (+2) Maths Previous Year Chapter Wise Question Papers, Plus Two (+2) Zoology Previous Year Chapter Wise Question Papers, Plus Two (+2) Botany Previous Year Chapter Wise Question Papers, Plus Two (+2) Computer Science Previous Year Chapter Wise Question Papers, Plus Two (+2) Computer Application Previous Year Chapter Wise Question Papers, Plus Two (+2) Commerce Previous Year Chapter Wise Question Papers , Plus Two (+2) Humanities Previous Year Chapter Wise Question Papers , Plus Two (+2) Economics Previous Year Chapter Wise Question Papers , Plus Two (+2) History Previous Year Chapter Wise Question Papers , Plus Two (+2) Islamic History Previous Year Chapter Wise Question Papers, Plus Two (+2) Psychology Previous Year Chapter Wise Question Papers , Plus Two (+2) Sociology Previous Year Chapter Wise Question Papers , Plus Two (+2) Political Science Previous Year Chapter Wise Question Papers, Plus Two (+2) Geography Previous Year Chapter Wise Question Papers, Plus Two (+2) Accountancy Previous Year Chapter Wise Question Papers, Plus Two (+2) Business Studies Previous Year Chapter Wise Question Papers, Plus Two (+2) English Previous Year Chapter Wise Question Papers , Plus Two (+2) Hindi Previous Year Chapter Wise Question Papers, Plus Two (+2) Arabic Previous Year Chapter Wise Question Papers, Plus Two (+2) Kaithang Previous Year Chapter Wise Question Papers , Plus Two (+2) Malayalam Previous Year Chapter Wise Question Papers

Plus One (+1) Previous Year Question Papers

Plus One (+1) Previous Year Chapter Wise Question Papers, Plus One (+1) Physics Previous Year Chapter Wise Question Papers , Plus One (+1) Chemistry Previous Year Chapter Wise Question Papers, Plus One (+1) Maths Previous Year Chapter Wise Question Papers, Plus One (+1) Zoology Previous Year Chapter Wise Question Papers , Plus One (+1) Botany Previous Year Chapter Wise Question Papers, Plus One (+1) Computer Science Previous Year Chapter Wise Question Papers, Plus One (+1) Computer Application Previous Year Chapter Wise Question Papers, Plus One (+1) Commerce Previous Year Chapter Wise Question Papers , Plus One (+1) Humanities Previous Year Chapter Wise Question Papers , Plus One (+1) Economics Previous Year Chapter Wise Question Papers , Plus One (+1) History Previous Year Chapter Wise Question Papers , Plus One (+1) Islamic History Previous Year Chapter Wise Question Papers, Plus One (+1) Psychology Previous Year Chapter Wise Question Papers , Plus One (+1) Sociology Previous Year Chapter Wise Question Papers , Plus One (+1) Political Science Previous Year Chapter Wise Question Papers, Plus One (+1) Geography Previous Year Chapter Wise Question Papers , Plus One (+1) Accountancy Previous Year Chapter Wise Question Papers, Plus One (+1) Business Studies Previous Year Chapter Wise Question Papers, Plus One (+1) English Previous Year Chapter Wise Question Papers , Plus One (+1) Hindi Previous Year Chapter Wise Question Papers, Plus One (+1) Arabic Previous Year Chapter Wise Question Papers, Plus One (+1) Kaithang Previous Year Chapter Wise Question Papers , Plus One (+1) Malayalam Previous Year Chapter Wise Question Papers

Resource

Are you looking for homework help from the best homework service? Thevillafp provides reviews of the best companies to help you.

Copyright © HSSlive: Plus One & Plus Two Notes & Solutions for Kerala State Board About | Contact | Privacy Policy