RD Sharma Class 7 ex 19.1 Solutions Chapter 19 Visualising Solid Shapes

In this chapter, we provide RD Sharma Class 7 ex 19.1 Solutions Chapter 19 Visualising Solid Shapes for English medium students, Which will very helpful for every student in their exams. Students can download the latest RD Sharma Class 7 ex 19.1 Solutions Chapter 19 Visualising Solid Shapes Maths pdf, Now you will get step by step solution to each question.

TextbookNCERT
ClassClass 7
SubjectMaths
ChapterChapter 19
Chapter NameVisualising Solid Shapes
ExerciseEx 19.1

RD Sharma Solutions for Class 7 Chapter 19 Visualising Solid Shapes Ex 19.1 Download PDF

Visualising Solid Shapes Exercise 19.1

Question: 1

Complete the following table and verify Euler’s formula in each case.

Complete the following table and verify Euler’s formula in each case
Face (F)64  
Edge (E)12   
Vertex (V)84  

Solution:

 IIIIIIIV
Face (F)6497
Edge1281615
Vertex (V)84910
Euler’s Formula (F – E + V)6 – 12 + 8 =24 – 6 + 4 = 29 – 16 + 9 = 27 – 15 + 10 = 2

Hence Euler’s formula is verified for these figures.

Question: 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.

Solution:

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.

All Chapter RD Sharma Solutions For Class 7 Maths

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