RBSE Solutions for Class 6 Maths Chapter 4 Basic Geometrical Ideas InText Questions

Rajasthan Board RBSE Solutions for Class 6 Maths Chapter 4 Basic Geometrical Ideas InText Questions Textbook Exercise Questions and Answers.

RBSE Class 6 Maths Solutions Chapter 4 Basic Geometrical Ideas InText Questions

(Try These Page No: 70)

Question 1.
With a sharp tip of the pencil, mark four points on a paper and name them by the letters A, C, P, H. Try to name these points in different ways. One such way could be this

Answer:

Question 2.
A star in the sky also gives us an idea of a point. Identify at least five such situations in your daily life.
Answer:

• Pointed end of the needle.
• Tip of a pencil/pen.
• Tip of the compass.
• Arrow shot game.
• Patterns on the microwave.
• Dot on a paper.

(Try These Page No: 71)

Question 1.
Name the line segments in the figure. Is A, the end point of each line segment?

Answer:
\(\overline{A B}\) or \(\overline{B A}\)
\(\overline{A C}\) or \(\overline{C A}\)
Yes, a is one of the end points of each line segment.

(Think, Discuss and Write Page No: 74)

Question 1.
If \(\overleftrightarrow{\boldsymbol{P Q}}\) is a ray,
(a) What is its starting point?
Answer:
P is the starting point.

(b) Where does the point Q lie on the ray?

Answer:
Q lies on the ray PQ.

(c) Can we say that Q is the starting point of this ray?
Answer:
No, Q is not the starting point of ray PQ.

Question 2.
(a) Can you also name it as \(\overrightarrow{O B}\) ? Why?
Answer:
Yes, it can also be named as \(\overrightarrow{O B}\) as a ray has one end point O and goes without end in one direction ray is passing through B and A.

(b) Are \(\overrightarrow{O A}\) and \(\overrightarrow{O B}\) same here?
Answer:
Yes, because ray is passing through points A and B.

(c) Can we write \(\overrightarrow{O A}\) as \(\overrightarrow{A O}\)?
Answer:
No, a ray is always named using its end point first and then any other point on the ray. So it cannot be named as \(\overrightarrow{A O}\).

Question 3.
Draw five rays and write appropriate names for them.
Answer:

Arrows on each of these rays show that the starting point of a row is fixed.

(Try These Page 74)

Question 1.
Name the rays given in this picture.
Answer:
\(\overrightarrow{T A}, \overrightarrow{T B}, \overrightarrow{T N}\) and \(\overrightarrow{N B} \).

Question 2.
Is T a starting point of each of these rays?
Answer:
No, T is not a starting point of each of these rays as T is not a starting point of \(\overrightarrow{N B}\).

(Do This Page 77)

Question 1.
Try to form a polygon with five matchsticks, four matchsticks, three matchsticks, two matchsticks.
In which case was it not possible? Why?
Answer:

In case of two matchsticks, no closed figure can be formed. So it is not a polygon.