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RBSE Solutions for Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes Ex 8.3

March 21, 2019 by Fazal Leave a Comment

RBSE Solutions for Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes Ex 8.3 is part of RBSE Solutions for Class 6 Maths. Here we have given Rajasthan Board RBSE Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes Exercise 8.3.

Board RBSE
Textbook SIERT, Rajasthan
Class Class 6
Subject Maths
Chapter Chapter 8
Chapter Name Basic Geometrical Concepts and Shapes
Exercise Ex 8.3
Number of Questions 5
Category RBSE Solutions

Rajasthan Board RBSE Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes Ex 8.3

Question 1.
The road from villages Ajabgarh to Gajabgarh (RBSESolutions.com) is drawn below. Write the name of ∠1, ∠2, ∠3, ∠4.
RBSE Solutions for Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes Ex 8.3 image 1
Solution:
(i) ∠1 = Obtuse angle
(ii) ∠2 = Right angle
(iii) ∠3 = Obtuse angle
(iv) ∠4 = Reflex angle

RBSE Solutions

Question 2.
Draw the following angles in your copy (RBSESolutions.com) arbitrarily and write their measurement with a protractor.
(i) Obtuse angle
(ii) Straight angle
(iii) Acute angle
(iv) Right angle
Solution:
RBSE Solutions for Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes Ex 8.3 image 2

Question 3.
Draw the following (RBSESolutions.com) angles using protractor.
(i) 45°
(ii) 90°
(iii) 72°
(iv) 105°
(v) 134°
(vi) 180°
(vii) 20°
(viii) 21°
Solution:
RBSE Solutions for Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes Ex 8.3 image 3
RBSE Solutions for Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes Ex 8.3 image 4
RBSE Solutions for Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes Ex 8.3 image 5
RBSE Solutions for Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes Ex 8.3 image 6

RBSE Solutions

Question 4.
With the help of (RBSESolutions.com) compass and ruler draw the following angles :
(i) 60°
(ii) 120°
(iii) 180°
(iv) 90°
(v) 45°
Solution:
(i) Drawing ∠60°
Step 1 : Draw a line segment AB. Now taking a suitable radius put the tip of compasses on A and draw an arc cutting AB at point P.
RBSE Solutions for Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes Ex 8.3 image 7
Step 2 : Put the tip on P and draw (RBSESolutions.com) another arc of same radius intersecting the previous arc. Mark Q on pointed intersection.
RBSE Solutions for Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes Ex 8.3 image 8
Step 3 : Joining A and Q, we have ∠QAB = 60°.
RBSE Solutions for Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes Ex 8.3 image 9

(ii) Drawing ∠120°
Step 1 : Continuing with the previous steps, put the (RBSESolutions.com) tip of compasses on Q and draw one more arc of the same radius, which intersects the previous are at point R.
RBSE Solutions for Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes Ex 8.3 image 10
Step 2 : Joining AR we get ∠RAB = 120°.
RBSE Solutions for Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes Ex 8.3 image 11

(iii) Drawing ∠180° Continuing the (RBSESolutions.com) steps of the above question (ii).
Step 1 : Draw an arc of the same radius with the tip of compasses on R which intersects the previous are at point S.
RBSE Solutions for Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes Ex 8.3 image 12
Step 2 : Joining SA, we get ∠SAB = 180°.
RBSE Solutions for Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes Ex 8.3 image 13

(iv) Drawing ∠90°
RBSE Solutions for Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes Ex 8.3 image 14

(v) Drawing ∠45°.
RBSE Solutions for Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes Ex 8.3 image 15
∠45° can be constructed by bisecting ∠90°.

Question 5.
Observe and find out the (RBSESolutions.com) similar figures In the following.
RBSE Solutions for Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes Ex 8.3 image 16
Solution:
On observing we find that (RBSESolutions.com) following figures are similar
(i) and (D)
(ii) and (C)
(iii) and (A)
(iv) and (B)
(v) and (E)

RBSE Solutions

We hope the RBSE Solutions for Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes Ex 8.3 will help you. If you have any query regarding Rajasthan Board RBSE Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes Exercise 8.3, drop a comment below and we will get back to you at the earliest.

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