RBSE Solutions for Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes In Text Exercise

RBSE Solutions for Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes In Text Exercise 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 In Text Exercise.

Board	RBSE
Textbook	SIERT, Rajasthan
Class	Class 6
Subject	Maths
Chapter	Chapter 8
Chapter Name	Basic Geometrical Concepts and Shapes
Exercise	In Text Exercise
Number of Questions	17
Category	RBSE Solutions

Rajasthan Board RBSE Class 6 Maths Chapter 8 Basic Geometrical Concepts and Shapes In Text Exercise

(Page No. 112)
Question 1.
Mention some places where you (RBSESolutions.com) notice dots/points in your daily life.
Solution:
In our daily life, we notice points in some places, which are following
(1) Light pole near bank of river
(2) Lighten bulb for away, at night
(3) sign marked by pen on paper
(4) Pencil’s tip
(5) Small hole made by pin

Question 2.
Find out some examples of line segments around you and write their names. Such as corners of wall…..
Solution:
Some examples of line segments in daily life
(a) Sides of table
(b) Piece of pencil
(c) Piece of chalk
(d) sides of almirah etc.

Question 3.
Look at the diagram below A rat is on (RBSESolutions.com) point A and a piece of chapatti is on point B, Which is the shortest way to reach the chapatti.

Solution:
Shortest way to reach the chapatti by rat will be A → 3 → B, because simple line joining two point shows the shortest distance between them.

(Page No. 116)
Question 1.
Kanku says it is more accurate to measure (RBSESolutions.com) the line by divider than the scale. Do you agree with her? Give a logic to support your answer. (Use Maths kit available in the school).
Solution:
Yes, she is right, because, divider measure the line by its tip, which is accurate.

(Page No. 118)
Question 1.
Find out some more examples of parallel lines like this in your daily life and write about these.
Solution:
Following are some more examples of parallel line in our daily life
(i) Stairs
(ii) Book, Note – books
(iii) Windows
(iv) Doors etc.

(Page No. 119)
Question 1.
1. If line L ⊥ M then is M ⊥ L?
2. How many line (RBSESolutions.com) can be perpendicular to any line?
3. Look at the letters of English alphabet L, N, X, Y, T and suggest which of these can be examples of perpendicular lines.
Answers:
1. Yes
2. infinite
3. L and T.

(Page No. 124)
Question 1.

In the figure, sides ………………
Vertex ………………
Solution:
In figure, sides are PQ, PR and vertex is P.

(Page No. 126)
Question 1.
Now draw angels (RBSESolutions.com) with the following measurements.
(i) ∠ABC = 110°
(ii) ∠PQR = 40°
Solution :

(Page No. 137)
Question 1.
Look at the diagram and (RBSESolutions.com) follow the directions of the clock.

(i) Value of an angle from East to South East.
(ii) Value of an angle from East to South West.
(iii) How many right angles are made from East to West?
(iv) After taking three right (RBSESolutions.com) angle turns from South in which direction we find ourselves?
Solution:

(i) Value of angle is 45°
(ii) Value of angle is 135°
(iii) Value of angle is 180°, thus, 180° has 2 right angles.
(iv) We find ourselves in east after taking three right angle turns from south.

Text Book Question
(Page No. 110)
Question 1.
Some diagrams of different things (RBSESolutions.com) are given below with their geometrical shapes. Tell us which object shows the shape in its surface.

Solution:

(Page No. 111)
Question 1.
Mark a point on a paper by pencil.
Solution:
Point ( . ) is a sign maked by pencil which decides a location.

(Page No. 114)
Question 1.

Look at the above diagram or (RBSESolutions.com) any scale you have and answer the following.
(1) How many numbers are marked on downside of it?
(2) How many numbers are marked on upside?
(3) How many small marks are there between two consecutive numbers?
Solution:
(1) 12 numbers
(2) 30 numbers
(3) Down side = 9 marks, Upside = 9 marks

Question 2.
If 1 cm = 10 mm
then 1 mm = …… cm.
Solution:
10 mm = 1 cm
1 mm = \(\frac { 1 }{ 10 }\) = 0.1 cm

Question 3.
Ajay and Vijay measured line (RBSESolutions.com) segment as shown in the diagram. Can you tell us whose answer is right? Should we measure a line segment by putting zero on the scale at the initial point of line?
(Measurement by Ajay) :

Measurement by Vijay) :

Solution:
Ajay and Vijay both gave right answer, but Ajay’s method is not right. The correct way to measure a line segment is putting zero on the scale at the initial point of line segment.

(Page No. 115)
Question 1.
Draw line segments of (RBSESolutions.com) different lengths and measure them.
Solution :

Activity :
(Page No. 123)

Take two match sticks and join them (RBSESolutions.com) together at one end to create on L – shape. This is equal to a right angle. We will use it as a tester. As shown in figure keep the tester on the side AB of ∠AOB. Since, ∠AOB is smaller than right angle, it is acute angle. Again keep the tester on side QR of ∠PQR such that the corner of the tester coincides with point Q. Since, ∠PQR is bigger than right angle, it is an obtuse angle.

Question 1.
Whether the following angles are acute, (RBSESolutions.com) right or obtuse by measuring them with the tester.

Solution:
On measuring above angles by tester, we find that:
1. Acute angle (i), (vi), (vii)
2. Obtuse angle (ii), (ii), (v)
3. Right angle (iv).

Attempt the following:
(Page No. 125)
Question 1.
You measured and classified angles (RBSESolutions.com) using the right angle tester in activity, into acute angle, right angle and obtuse angle. With a protractor measure and write the angles in the following table.
Solution:
We find the following values of angles given in activity, by measuring them with a protractor.
Measurements of acute angles :
(i) 45°
(vi) 30°
(vii) 45°
Measurements (RBSESolutions.com) of Obtuse angles :
(ii) 105°
(iii) 120°
(v) 135°
Measurements of right angle :
(iv) 90°

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