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NCERT Solutions for Class 6 Maths Chapter 4 Basic Geometrical Ideas Ex 4.5

NCERT Solutions for Class 6 Maths Chapter 4 Basic Geometrical Ideas Ex 4.5 are part of NCERT Solutions for Class 6 Maths. Here we have given NCERT Solutions for Class 6 Maths Chapter 4 Basic Geometrical Ideas Ex 4.5.

  • Basic Geometrical Ideas Class 6 Ex 4.1
  • Basic Geometrical Ideas Class 6 Ex 4.2
  • Basic Geometrical Ideas Class 6 Ex 4.3
  • Basic Geometrical Ideas Class 6 Ex 4.4
  • Basic Geometrical Ideas Class 6 Ex 4.6
Board CBSE
Textbook NCERT
Class Class 6
Subject Maths
Chapter Chapter 4
Chapter Name Basic Geometrical Ideas
Exercise  Ex 4.5
Number of Questions Solved 3
Category NCERT Solutions

NCERT Solutions for Class 6 Maths Chapter 4 Basic Geometrical Ideas Ex 4.5

Ex 4.5 Class 6 Maths Question 1.
Draw a rough sketch of a quadrilateral PQRS. Draw its diagonals. Name them. Is the meeting point of the diagonals in the interior or exterior of the quadrilateral?
Solution:
PQRS is a quadrilateral having PR and QS as its diagonals intersecting at the point O, which is in the interior of the quadrilateral PQRS.
NCERT Solutions for Class 6 Maths Chapter 4 Basic Geometrical Ideas 22
Ex 4.5 Class 6 Maths Question 2.
Draw a rough sketch of a quadrilateral KLMN. State,
(a) two pairs of opposite sides,
(b) two pairs of opposite angles,
(c) two pairs of adjacent sides,
(d) two pairs of adjacent angles.
Solution:
KLMN is a quadrilateral.
NCERT Solutions for Class 6 Maths Chapter 4 Basic Geometrical Ideas 23
(a)
KL, MN and LM, KN are two pairs of its opposite sides.
(b) ∠K, ∠M and∠L, ∠N are two pairs of opposite angles.
(c) KL, LM and KN, NM are two pairs of adjacent sides.
(d) ∠K, ∠N and ∠L, ∠M are two pairs of adjacent angles.

Ex 4.5 Class 6 Maths Question 3.
Investigate:
Use strips and fasteners to make a triangle and a quadrilateral.
Try to push inward at any one vertex of the triangle. Do the same to the quadrilateral.
Is the triangle distorted? Is the quadrilateral distorted? Is the triangle rigid?
Why is it that structures like electric towers make use of triangular shapes and not quadrilaterals?
Solution:
On pushing inward at any one vertex of the triangle, we find that the triangle is not distorted. Whereas doing so with the quadrilateral we find that it is distorted. Triangle is rigid. Thus, we make use of triangular shapes in structures like electric towers as triangular shapes are more rigid.

We hope the NCERT Solutions for Class 6 Maths Chapter 4 Basic Geometrical Ideas Ex 4.5 help you. If you have any query regarding NCERT Solutions for Class 6 Maths Chapter 4 Basic Geometrical Ideas Ex 4.5, drop a comment below and we will get back to you at the earliest.

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