Class 7 Exam  >  Class 7 Notes  >  Mathematics (Maths) Class 7  >  RD Sharma Solutions: Visualising Solid Shapes (Exercise 19.1)

Visualising Solid Shapes (Exercise 19.1) RD Sharma Solutions | Mathematics (Maths) Class 7 PDF Download

Download, print and study this document offline
Please wait while the PDF view is loading
 Page 1


Q u e s t i o n : 1
Complete the following table and verify Euler's formula in each case.
 
 
Faces
(F)
6 4 9 7
Edges
(E)
12 6 16 15
Vertex
(V)
8 4 9 10
S o l u t i o n :
 I  II III IV
Faces (F) 6 4 9 7
Edges (E) 12 6 16 15
Vertices (V) 8 4 9 10
Euler's formula (F - E
+ V)
6 - 12 + 8
= 2
4 - 6 + 4
= 2
9 - 16 + 9
= 2
7 - 15 + 10
= 2
Hence Euler's formula is verified for these figures.
Q u e s t i o n : 2
Give three examples from our daily life which are in the form of (i) a cone (ii) a sphere (iii) a cuboid (iv) a cylinder (v) a pyramid.
S o l u t i o n :
 Examples of
(i) Cone: Ice-cream cone, clown cap, rocket
(ii) Sphere: Football, a round apple, an orange
(iii) Cuboid: book, brick, duster
(iv) Cylinder: circular pipe, glass, circular pole
(v) Christmas decorations, cheese and patio umbrellas.
      
  
Read More
76 videos|344 docs|39 tests

Top Courses for Class 7

76 videos|344 docs|39 tests
Download as PDF
Explore Courses for Class 7 exam

Top Courses for Class 7

Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Related Searches

shortcuts and tricks

,

Visualising Solid Shapes (Exercise 19.1) RD Sharma Solutions | Mathematics (Maths) Class 7

,

Sample Paper

,

Viva Questions

,

video lectures

,

Important questions

,

practice quizzes

,

Objective type Questions

,

Exam

,

Previous Year Questions with Solutions

,

pdf

,

Summary

,

mock tests for examination

,

past year papers

,

MCQs

,

study material

,

Extra Questions

,

ppt

,

Free

,

Semester Notes

,

Visualising Solid Shapes (Exercise 19.1) RD Sharma Solutions | Mathematics (Maths) Class 7

,

Visualising Solid Shapes (Exercise 19.1) RD Sharma Solutions | Mathematics (Maths) Class 7

;